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Finding the Fourth Proportional to 116,990.49, 161,446.39 and 63,275.38

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Solution

The fourth proportional to 116,990.49, 161,446.39 and 63,275.38 is: 87,319.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,990.49 : 161,446.39 = 63,275.38 : x
  2. Step 2: Convert to fraction form
    116,990.49/161,446.39 = 63,275.38/x
  3. Step 3: Cross multiply
    116,990.49x = 161,446.39 × 63,275.38
  4. Step 4: Simplify right side
    116,990.49x = 10,215,581,293.04
  5. Step 5: Solve for x
    x = 10,215,581,293.04/116,990.49
  6. Step 6: Final answer
    x = 87,319.76

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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.