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Finding the Fourth Proportional to 106,398.68, 146,839.02 and 58,661.36

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Solution

The fourth proportional to 106,398.68, 146,839.02 and 58,661.36 is: 80,957.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,398.68 : 146,839.02 = 58,661.36 : x
  2. Step 2: Convert to fraction form
    106,398.68/146,839.02 = 58,661.36/x
  3. Step 3: Cross multiply
    106,398.68x = 146,839.02 × 58,661.36
  4. Step 4: Simplify right side
    106,398.68x = 8,613,776,614.27
  5. Step 5: Solve for x
    x = 8,613,776,614.27/106,398.68
  6. Step 6: Final answer
    x = 80,957.55

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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.