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Finding the Fourth Proportional to 357,125.94, 535,720.32 and 132,488.82

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Solution

The fourth proportional to 357,125.94, 535,720.32 and 132,488.82 is: 198,744.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,125.94 : 535,720.32 = 132,488.82 : x
  2. Step 2: Convert to fraction form
    357,125.94/535,720.32 = 132,488.82/x
  3. Step 3: Cross multiply
    357,125.94x = 535,720.32 × 132,488.82
  4. Step 4: Simplify right side
    357,125.94x = 70,976,953,046.82
  5. Step 5: Solve for x
    x = 70,976,953,046.82/357,125.94
  6. Step 6: Final answer
    x = 198,744.88

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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.