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Finding the Fourth Proportional to 107,761.38, 148,710.30 and 60,015.30

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Solution

The fourth proportional to 107,761.38, 148,710.30 and 60,015.30 is: 82,820.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,761.38 : 148,710.30 = 60,015.30 : x
  2. Step 2: Convert to fraction form
    107,761.38/148,710.30 = 60,015.30/x
  3. Step 3: Cross multiply
    107,761.38x = 148,710.30 × 60,015.30
  4. Step 4: Simplify right side
    107,761.38x = 8,924,893,267.59
  5. Step 5: Solve for x
    x = 8,924,893,267.59/107,761.38
  6. Step 6: Final answer
    x = 82,820.89

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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.