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Finding the Fourth Proportional to 403,176.60, 604,983.60 and 166,543.20

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Solution

The fourth proportional to 403,176.60, 604,983.60 and 166,543.20 is: 249,905.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,176.60 : 604,983.60 = 166,543.20 : x
  2. Step 2: Convert to fraction form
    403,176.60/604,983.60 = 166,543.20/x
  3. Step 3: Cross multiply
    403,176.60x = 604,983.60 × 166,543.20
  4. Step 4: Simplify right side
    403,176.60x = 100,755,904,691.52
  5. Step 5: Solve for x
    x = 100,755,904,691.52/403,176.60
  6. Step 6: Final answer
    x = 249,905.14

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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.