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Finding the Fourth Proportional to 318,335.60, 439,293.87 and 175,095.61

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Solution

The fourth proportional to 318,335.60, 439,293.87 and 175,095.61 is: 241,626.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,335.60 : 439,293.87 = 175,095.61 : x
  2. Step 2: Convert to fraction form
    318,335.60/439,293.87 = 175,095.61/x
  3. Step 3: Cross multiply
    318,335.60x = 439,293.87 × 175,095.61
  4. Step 4: Simplify right side
    318,335.60x = 76,918,428,136.91
  5. Step 5: Solve for x
    x = 76,918,428,136.91/318,335.60
  6. Step 6: Final answer
    x = 241,626.85

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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.