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Finding the Fourth Proportional to 357,089.92, 535,625 and 132,424.28

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Solution

The fourth proportional to 357,089.92, 535,625 and 132,424.28 is: 198,632.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,089.92 : 535,625 = 132,424.28 : x
  2. Step 2: Convert to fraction form
    357,089.92/535,625 = 132,424.28/x
  3. Step 3: Cross multiply
    357,089.92x = 535,625 × 132,424.28
  4. Step 4: Simplify right side
    357,089.92x = 70,929,754,975
  5. Step 5: Solve for x
    x = 70,929,754,975/357,089.92
  6. Step 6: Final answer
    x = 198,632.76

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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.