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Finding the Fourth Proportional to 399,031.95, 598,553.19 and 132,792.51

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Solution

The fourth proportional to 399,031.95, 598,553.19 and 132,792.51 is: 199,190.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,031.95 : 598,553.19 = 132,792.51 : x
  2. Step 2: Convert to fraction form
    399,031.95/598,553.19 = 132,792.51/x
  3. Step 3: Cross multiply
    399,031.95x = 598,553.19 × 132,792.51
  4. Step 4: Simplify right side
    399,031.95x = 79,483,380,468.61
  5. Step 5: Solve for x
    x = 79,483,380,468.61/399,031.95
  6. Step 6: Final answer
    x = 199,190.52

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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.