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Finding the Fourth Proportional to 403,500.40, 604,991.40 and 166,937.20

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Solution

The fourth proportional to 403,500.40, 604,991.40 and 166,937.20 is: 250,298.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,500.40 : 604,991.40 = 166,937.20 : x
  2. Step 2: Convert to fraction form
    403,500.40/604,991.40 = 166,937.20/x
  3. Step 3: Cross multiply
    403,500.40x = 604,991.40 × 166,937.20
  4. Step 4: Simplify right side
    403,500.40x = 100,995,570,340.08
  5. Step 5: Solve for x
    x = 100,995,570,340.08/403,500.40
  6. Step 6: Final answer
    x = 250,298.56

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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.