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Finding the Fourth Proportional to 116,913.92, 161,302.48 and 65,920.24

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Solution

The fourth proportional to 116,913.92, 161,302.48 and 65,920.24 is: 90,948.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,913.92 : 161,302.48 = 65,920.24 : x
  2. Step 2: Convert to fraction form
    116,913.92/161,302.48 = 65,920.24/x
  3. Step 3: Cross multiply
    116,913.92x = 161,302.48 × 65,920.24
  4. Step 4: Simplify right side
    116,913.92x = 10,633,098,194.20
  5. Step 5: Solve for x
    x = 10,633,098,194.20/116,913.92
  6. Step 6: Final answer
    x = 90,948.09

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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.