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Finding the Fourth Proportional to 80,779,033,008.45, 121,168,549,512.67 and 80,779,033,008.45

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Solution

The fourth proportional to 80,779,033,008.45, 121,168,549,512.67 and 80,779,033,008.45 is: 121,168,549,512.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,779,033,008.45 : 121,168,549,512.67 = 80,779,033,008.45 : x
  2. Step 2: Convert to fraction form
    80,779,033,008.45/121,168,549,512.67 = 80,779,033,008.45/x
  3. Step 3: Cross multiply
    80,779,033,008.45x = 121,168,549,512.67 × 80,779,033,008.45
  4. Step 4: Simplify right side
    80,779,033,008.45x = 9,787,878,260,669,977,460,736
  5. Step 5: Solve for x
    x = 9,787,878,260,669,977,460,736/80,779,033,008.45
  6. Step 6: Final answer
    x = 121,168,549,512.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.