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Finding the Fourth Proportional to 251,489.68, 377,000.16 and 172,641.04

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Solution

The fourth proportional to 251,489.68, 377,000.16 and 172,641.04 is: 258,800.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,489.68 : 377,000.16 = 172,641.04 : x
  2. Step 2: Convert to fraction form
    251,489.68/377,000.16 = 172,641.04/x
  3. Step 3: Cross multiply
    251,489.68x = 377,000.16 × 172,641.04
  4. Step 4: Simplify right side
    251,489.68x = 65,085,699,702.57
  5. Step 5: Solve for x
    x = 65,085,699,702.57/251,489.68
  6. Step 6: Final answer
    x = 258,800.68

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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.