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Finding the Fourth Proportional to 251,788.59, 377,693.31 and 74,295.60

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Solution

The fourth proportional to 251,788.59, 377,693.31 and 74,295.60 is: 111,446.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,788.59 : 377,693.31 = 74,295.60 : x
  2. Step 2: Convert to fraction form
    251,788.59/377,693.31 = 74,295.60/x
  3. Step 3: Cross multiply
    251,788.59x = 377,693.31 × 74,295.60
  4. Step 4: Simplify right side
    251,788.59x = 28,060,949,526.78
  5. Step 5: Solve for x
    x = 28,060,949,526.78/251,788.59
  6. Step 6: Final answer
    x = 111,446.47

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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.