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Finding the Fourth Proportional to 251,876.58, 377,841.36 and 145,258.11

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Solution

The fourth proportional to 251,876.58, 377,841.36 and 145,258.11 is: 217,902.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,876.58 : 377,841.36 = 145,258.11 : x
  2. Step 2: Convert to fraction form
    251,876.58/377,841.36 = 145,258.11/x
  3. Step 3: Cross multiply
    251,876.58x = 377,841.36 × 145,258.11
  4. Step 4: Simplify right side
    251,876.58x = 54,884,521,833.43
  5. Step 5: Solve for x
    x = 54,884,521,833.43/251,876.58
  6. Step 6: Final answer
    x = 217,902.44

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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.