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Finding the Fourth Proportional to 107,659.20, 161,584.80 and 63,230.40

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Solution

The fourth proportional to 107,659.20, 161,584.80 and 63,230.40 is: 94,901.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,659.20 : 161,584.80 = 63,230.40 : x
  2. Step 2: Convert to fraction form
    107,659.20/161,584.80 = 63,230.40/x
  3. Step 3: Cross multiply
    107,659.20x = 161,584.80 × 63,230.40
  4. Step 4: Simplify right side
    107,659.20x = 10,217,071,537.92
  5. Step 5: Solve for x
    x = 10,217,071,537.92/107,659.20
  6. Step 6: Final answer
    x = 94,901.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.