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Finding the Fourth Proportional to 116,693.55, 160,972.26 and 76,472.19

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Solution

The fourth proportional to 116,693.55, 160,972.26 and 76,472.19 is: 105,489.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,693.55 : 160,972.26 = 76,472.19 : x
  2. Step 2: Convert to fraction form
    116,693.55/160,972.26 = 76,472.19/x
  3. Step 3: Cross multiply
    116,693.55x = 160,972.26 × 76,472.19
  4. Step 4: Simplify right side
    116,693.55x = 12,309,901,251.45
  5. Step 5: Solve for x
    x = 12,309,901,251.45/116,693.55
  6. Step 6: Final answer
    x = 105,489.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.