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Finding the Fourth Proportional to 107,876.70, 148,869.36 and 62,580.96

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Solution

The fourth proportional to 107,876.70, 148,869.36 and 62,580.96 is: 86,361.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,876.70 : 148,869.36 = 62,580.96 : x
  2. Step 2: Convert to fraction form
    107,876.70/148,869.36 = 62,580.96/x
  3. Step 3: Cross multiply
    107,876.70x = 148,869.36 × 62,580.96
  4. Step 4: Simplify right side
    107,876.70x = 9,316,387,463.39
  5. Step 5: Solve for x
    x = 9,316,387,463.39/107,876.70
  6. Step 6: Final answer
    x = 86,361.44

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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.