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Finding the Fourth Proportional to 482,159.88, 723,157.20 and 127,177.38

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Solution

The fourth proportional to 482,159.88, 723,157.20 and 127,177.38 is: 190,744.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,159.88 : 723,157.20 = 127,177.38 : x
  2. Step 2: Convert to fraction form
    482,159.88/723,157.20 = 127,177.38/x
  3. Step 3: Cross multiply
    482,159.88x = 723,157.20 × 127,177.38
  4. Step 4: Simplify right side
    482,159.88x = 91,969,238,024.14
  5. Step 5: Solve for x
    x = 91,969,238,024.14/482,159.88
  6. Step 6: Final answer
    x = 190,744.28

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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.