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Finding the Fourth Proportional to 402,754.86, 604,003.16 and 132,822.40

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Solution

The fourth proportional to 402,754.86, 604,003.16 and 132,822.40 is: 199,191.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,754.86 : 604,003.16 = 132,822.40 : x
  2. Step 2: Convert to fraction form
    402,754.86/604,003.16 = 132,822.40/x
  3. Step 3: Cross multiply
    402,754.86x = 604,003.16 × 132,822.40
  4. Step 4: Simplify right side
    402,754.86x = 80,225,149,318.78
  5. Step 5: Solve for x
    x = 80,225,149,318.78/402,754.86
  6. Step 6: Final answer
    x = 199,191.01

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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.