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Finding the Fourth Proportional to 482,697.92, 724,163.92 and 145,718.45

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Solution

The fourth proportional to 482,697.92, 724,163.92 and 145,718.45 is: 218,613.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,697.92 : 724,163.92 = 145,718.45 : x
  2. Step 2: Convert to fraction form
    482,697.92/724,163.92 = 145,718.45/x
  3. Step 3: Cross multiply
    482,697.92x = 724,163.92 × 145,718.45
  4. Step 4: Simplify right side
    482,697.92x = 105,524,039,983.21
  5. Step 5: Solve for x
    x = 105,524,039,983.21/482,697.92
  6. Step 6: Final answer
    x = 218,613.00

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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.