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Finding the Fourth Proportional to 175,086.60, 262,629.90 and 86,513.10

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Solution

The fourth proportional to 175,086.60, 262,629.90 and 86,513.10 is: 129,769.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,086.60 : 262,629.90 = 86,513.10 : x
  2. Step 2: Convert to fraction form
    175,086.60/262,629.90 = 86,513.10/x
  3. Step 3: Cross multiply
    175,086.60x = 262,629.90 × 86,513.10
  4. Step 4: Simplify right side
    175,086.60x = 22,720,926,801.69
  5. Step 5: Solve for x
    x = 22,720,926,801.69/175,086.60
  6. Step 6: Final answer
    x = 129,769.65

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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.