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Finding the Fourth Proportional to 358,255.31, 537,390.25 and 121,597.61

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Solution

The fourth proportional to 358,255.31, 537,390.25 and 121,597.61 is: 182,398.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,255.31 : 537,390.25 = 121,597.61 : x
  2. Step 2: Convert to fraction form
    358,255.31/537,390.25 = 121,597.61/x
  3. Step 3: Cross multiply
    358,255.31x = 537,390.25 × 121,597.61
  4. Step 4: Simplify right side
    358,255.31x = 65,345,367,046.36
  5. Step 5: Solve for x
    x = 65,345,367,046.36/358,255.31
  6. Step 6: Final answer
    x = 182,398.88

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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.