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Finding the Fourth Proportional to 116,876.10, 175,314.15 and 57,720.90

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Solution

The fourth proportional to 116,876.10, 175,314.15 and 57,720.90 is: 86,581.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,876.10 : 175,314.15 = 57,720.90 : x
  2. Step 2: Convert to fraction form
    116,876.10/175,314.15 = 57,720.90/x
  3. Step 3: Cross multiply
    116,876.10x = 175,314.15 × 57,720.90
  4. Step 4: Simplify right side
    116,876.10x = 10,119,290,520.74
  5. Step 5: Solve for x
    x = 10,119,290,520.74/116,876.10
  6. Step 6: Final answer
    x = 86,581.35

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Similar ratio
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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.