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Finding the Fourth Proportional to 267,350.10, 401,025.15 and 172,871.70

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Solution

The fourth proportional to 267,350.10, 401,025.15 and 172,871.70 is: 259,307.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,350.10 : 401,025.15 = 172,871.70 : x
  2. Step 2: Convert to fraction form
    267,350.10/401,025.15 = 172,871.70/x
  3. Step 3: Cross multiply
    267,350.10x = 401,025.15 × 172,871.70
  4. Step 4: Simplify right side
    267,350.10x = 69,325,899,423.26
  5. Step 5: Solve for x
    x = 69,325,899,423.26/267,350.10
  6. Step 6: Final answer
    x = 259,307.55

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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.