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Finding the Fourth Proportional to 107,870.66, 148,865.02 and 60,134.12

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Solution

The fourth proportional to 107,870.66, 148,865.02 and 60,134.12 is: 82,987.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,870.66 : 148,865.02 = 60,134.12 : x
  2. Step 2: Convert to fraction form
    107,870.66/148,865.02 = 60,134.12/x
  3. Step 3: Cross multiply
    107,870.66x = 148,865.02 × 60,134.12
  4. Step 4: Simplify right side
    107,870.66x = 8,951,866,976.48
  5. Step 5: Solve for x
    x = 8,951,866,976.48/107,870.66
  6. Step 6: Final answer
    x = 82,987.04

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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.