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Finding the Fourth Proportional to 267,005.80, 400,445.38 and 98,434.52

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Solution

The fourth proportional to 267,005.80, 400,445.38 and 98,434.52 is: 147,628.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,005.80 : 400,445.38 = 98,434.52 : x
  2. Step 2: Convert to fraction form
    267,005.80/400,445.38 = 98,434.52/x
  3. Step 3: Cross multiply
    267,005.80x = 400,445.38 × 98,434.52
  4. Step 4: Simplify right side
    267,005.80x = 39,417,648,766.52
  5. Step 5: Solve for x
    x = 39,417,648,766.52/267,005.80
  6. Step 6: Final answer
    x = 147,628.44

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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.