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Finding the Fourth Proportional to 557,686.89, 836,531.15 and 136,963.17

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Solution

The fourth proportional to 557,686.89, 836,531.15 and 136,963.17 is: 205,444.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,686.89 : 836,531.15 = 136,963.17 : x
  2. Step 2: Convert to fraction form
    557,686.89/836,531.15 = 136,963.17/x
  3. Step 3: Cross multiply
    557,686.89x = 836,531.15 × 136,963.17
  4. Step 4: Simplify right side
    557,686.89x = 114,573,957,422.93
  5. Step 5: Solve for x
    x = 114,573,957,422.93/557,686.89
  6. Step 6: Final answer
    x = 205,444.95

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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.