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Finding the Fourth Proportional to 153,881.73, 230,925.69 and 54,042.30

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Solution

The fourth proportional to 153,881.73, 230,925.69 and 54,042.30 is: 81,099.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,881.73 : 230,925.69 = 54,042.30 : x
  2. Step 2: Convert to fraction form
    153,881.73/230,925.69 = 54,042.30/x
  3. Step 3: Cross multiply
    153,881.73x = 230,925.69 × 54,042.30
  4. Step 4: Simplify right side
    153,881.73x = 12,479,755,416.69
  5. Step 5: Solve for x
    x = 12,479,755,416.69/153,881.73
  6. Step 6: Final answer
    x = 81,099.66

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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.