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Finding the Fourth Proportional to 239,978.79, 359,988.84 and 62,486.12

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Solution

The fourth proportional to 239,978.79, 359,988.84 and 62,486.12 is: 93,734.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,978.79 : 359,988.84 = 62,486.12 : x
  2. Step 2: Convert to fraction form
    239,978.79/359,988.84 = 62,486.12/x
  3. Step 3: Cross multiply
    239,978.79x = 359,988.84 × 62,486.12
  4. Step 4: Simplify right side
    239,978.79x = 22,494,305,854.90
  5. Step 5: Solve for x
    x = 22,494,305,854.90/239,978.79
  6. Step 6: Final answer
    x = 93,734.56

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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.