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Finding the Fourth Proportional to 86,960.66, 119,737.02 and 67,917.38

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Solution

The fourth proportional to 86,960.66, 119,737.02 and 67,917.38 is: 93,516.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,960.66 : 119,737.02 = 67,917.38 : x
  2. Step 2: Convert to fraction form
    86,960.66/119,737.02 = 67,917.38/x
  3. Step 3: Cross multiply
    86,960.66x = 119,737.02 × 67,917.38
  4. Step 4: Simplify right side
    86,960.66x = 8,132,224,687.41
  5. Step 5: Solve for x
    x = 8,132,224,687.41/86,960.66
  6. Step 6: Final answer
    x = 93,516.13

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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.