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Finding the Fourth Proportional to 488,666.70, 732,805.65 and 172,961.10

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Solution

The fourth proportional to 488,666.70, 732,805.65 and 172,961.10 is: 259,372.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,666.70 : 732,805.65 = 172,961.10 : x
  2. Step 2: Convert to fraction form
    488,666.70/732,805.65 = 172,961.10/x
  3. Step 3: Cross multiply
    488,666.70x = 732,805.65 × 172,961.10
  4. Step 4: Simplify right side
    488,666.70x = 126,746,871,310.22
  5. Step 5: Solve for x
    x = 126,746,871,310.22/488,666.70
  6. Step 6: Final answer
    x = 259,372.84

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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.