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Finding the Fourth Proportional to 107,659.60, 148,569.14 and 59,912.12

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Solution

The fourth proportional to 107,659.60, 148,569.14 and 59,912.12 is: 82,678.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,659.60 : 148,569.14 = 59,912.12 : x
  2. Step 2: Convert to fraction form
    107,659.60/148,569.14 = 59,912.12/x
  3. Step 3: Cross multiply
    107,659.60x = 148,569.14 × 59,912.12
  4. Step 4: Simplify right side
    107,659.60x = 8,901,092,143.98
  5. Step 5: Solve for x
    x = 8,901,092,143.98/107,659.60
  6. Step 6: Final answer
    x = 82,678.11

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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.