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Finding the Fourth Proportional to 251,562.60, 377,343.96 and 172,436.94

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Solution

The fourth proportional to 251,562.60, 377,343.96 and 172,436.94 is: 258,655.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,562.60 : 377,343.96 = 172,436.94 : x
  2. Step 2: Convert to fraction form
    251,562.60/377,343.96 = 172,436.94/x
  3. Step 3: Cross multiply
    251,562.60x = 377,343.96 × 172,436.94
  4. Step 4: Simplify right side
    251,562.60x = 65,068,037,789.88
  5. Step 5: Solve for x
    x = 65,068,037,789.88/251,562.60
  6. Step 6: Final answer
    x = 258,655.45

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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.