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Finding the Fourth Proportional to 403,250.40, 604,616.40 and 166,687.20

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Solution

The fourth proportional to 403,250.40, 604,616.40 and 166,687.20 is: 249,923.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,250.40 : 604,616.40 = 166,687.20 : x
  2. Step 2: Convert to fraction form
    403,250.40/604,616.40 = 166,687.20/x
  3. Step 3: Cross multiply
    403,250.40x = 604,616.40 × 166,687.20
  4. Step 4: Simplify right side
    403,250.40x = 100,781,814,790.08
  5. Step 5: Solve for x
    x = 100,781,814,790.08/403,250.40
  6. Step 6: Final answer
    x = 249,923.66

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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.