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Finding the Fourth Proportional to 99,414.90, 137,192.49 and 54,092.79

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Solution

The fourth proportional to 99,414.90, 137,192.49 and 54,092.79 is: 74,648.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,414.90 : 137,192.49 = 54,092.79 : x
  2. Step 2: Convert to fraction form
    99,414.90/137,192.49 = 54,092.79/x
  3. Step 3: Cross multiply
    99,414.90x = 137,192.49 × 54,092.79
  4. Step 4: Simplify right side
    99,414.90x = 7,421,124,551.15
  5. Step 5: Solve for x
    x = 7,421,124,551.15/99,414.90
  6. Step 6: Final answer
    x = 74,648.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.