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Finding the Fourth Proportional to 106,379.92, 146,802.54 and 58,637.71

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Solution

The fourth proportional to 106,379.92, 146,802.54 and 58,637.71 is: 80,919.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,379.92 : 146,802.54 = 58,637.71 : x
  2. Step 2: Convert to fraction form
    106,379.92/146,802.54 = 58,637.71/x
  3. Step 3: Cross multiply
    106,379.92x = 146,802.54 × 58,637.71
  4. Step 4: Simplify right side
    106,379.92x = 8,608,164,767.78
  5. Step 5: Solve for x
    x = 8,608,164,767.78/106,379.92
  6. Step 6: Final answer
    x = 80,919.08

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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.