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Finding the Fourth Proportional to 312,575.61, 468,350.82 and 132,517.16

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Solution

The fourth proportional to 312,575.61, 468,350.82 and 132,517.16 is: 198,558.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,575.61 : 468,350.82 = 132,517.16 : x
  2. Step 2: Convert to fraction form
    312,575.61/468,350.82 = 132,517.16/x
  3. Step 3: Cross multiply
    312,575.61x = 468,350.82 × 132,517.16
  4. Step 4: Simplify right side
    312,575.61x = 62,064,518,208.32
  5. Step 5: Solve for x
    x = 62,064,518,208.32/312,575.61
  6. Step 6: Final answer
    x = 198,558.42

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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.