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Finding the Fourth Proportional to 116,207.38, 160,366.20 and 65,906.38

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Solution

The fourth proportional to 116,207.38, 160,366.20 and 65,906.38 is: 90,950.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,207.38 : 160,366.20 = 65,906.38 : x
  2. Step 2: Convert to fraction form
    116,207.38/160,366.20 = 65,906.38/x
  3. Step 3: Cross multiply
    116,207.38x = 160,366.20 × 65,906.38
  4. Step 4: Simplify right side
    116,207.38x = 10,569,154,914.53
  5. Step 5: Solve for x
    x = 10,569,154,914.53/116,207.38
  6. Step 6: Final answer
    x = 90,950.81

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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.