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Finding the Fourth Proportional to 186,720.90, 280,081.35 and 186,720.90

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Solution

The fourth proportional to 186,720.90, 280,081.35 and 186,720.90 is: 280,081.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,720.90 : 280,081.35 = 186,720.90 : x
  2. Step 2: Convert to fraction form
    186,720.90/280,081.35 = 186,720.90/x
  3. Step 3: Cross multiply
    186,720.90x = 280,081.35 × 186,720.90
  4. Step 4: Simplify right side
    186,720.90x = 52,297,041,745.22
  5. Step 5: Solve for x
    x = 52,297,041,745.22/186,720.90
  6. Step 6: Final answer
    x = 280,081.35

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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.