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Finding the Fourth Proportional to 60,584,328.90, 90,874,160.55 and 20,194,812.90

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Solution

The fourth proportional to 60,584,328.90, 90,874,160.55 and 20,194,812.90 is: 30,291,441.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,584,328.90 : 90,874,160.55 = 20,194,812.90 : x
  2. Step 2: Convert to fraction form
    60,584,328.90/90,874,160.55 = 20,194,812.90/x
  3. Step 3: Cross multiply
    60,584,328.90x = 90,874,160.55 × 20,194,812.90
  4. Step 4: Simplify right side
    60,584,328.90x = 1,835,186,669,751,811
  5. Step 5: Solve for x
    x = 1,835,186,669,751,811/60,584,328.90
  6. Step 6: Final answer
    x = 30,291,441.75

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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.