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Finding the Fourth Proportional to 347,177.61, 520,963.11 and 136,963.17

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Solution

The fourth proportional to 347,177.61, 520,963.11 and 136,963.17 is: 205,522.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,177.61 : 520,963.11 = 136,963.17 : x
  2. Step 2: Convert to fraction form
    347,177.61/520,963.11 = 136,963.17/x
  3. Step 3: Cross multiply
    347,177.61x = 520,963.11 × 136,963.17
  4. Step 4: Simplify right side
    347,177.61x = 71,352,758,998.66
  5. Step 5: Solve for x
    x = 71,352,758,998.66/347,177.61
  6. Step 6: Final answer
    x = 205,522.35

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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.