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Finding the Fourth Proportional to 251,829.62, 377,785.47 and 74,354.57

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Solution

The fourth proportional to 251,829.62, 377,785.47 and 74,354.57 is: 111,543.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,829.62 : 377,785.47 = 74,354.57 : x
  2. Step 2: Convert to fraction form
    251,829.62/377,785.47 = 74,354.57/x
  3. Step 3: Cross multiply
    251,829.62x = 377,785.47 × 74,354.57
  4. Step 4: Simplify right side
    251,829.62x = 28,090,077,687.49
  5. Step 5: Solve for x
    x = 28,090,077,687.49/251,829.62
  6. Step 6: Final answer
    x = 111,543.98

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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.