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Finding the Fourth Proportional to 107,701.97, 148,648.64 and 62,379.94

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Solution

The fourth proportional to 107,701.97, 148,648.64 and 62,379.94 is: 86,095.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,701.97 : 148,648.64 = 62,379.94 : x
  2. Step 2: Convert to fraction form
    107,701.97/148,648.64 = 62,379.94/x
  3. Step 3: Cross multiply
    107,701.97x = 148,648.64 × 62,379.94
  4. Step 4: Simplify right side
    107,701.97x = 9,272,693,028.61
  5. Step 5: Solve for x
    x = 9,272,693,028.61/107,701.97
  6. Step 6: Final answer
    x = 86,095.86

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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.