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Finding the Fourth Proportional to 332,287.70, 498,431.55 and 155,140.70

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Solution

The fourth proportional to 332,287.70, 498,431.55 and 155,140.70 is: 232,711.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,287.70 : 498,431.55 = 155,140.70 : x
  2. Step 2: Convert to fraction form
    332,287.70/498,431.55 = 155,140.70/x
  3. Step 3: Cross multiply
    332,287.70x = 498,431.55 × 155,140.70
  4. Step 4: Simplify right side
    332,287.70x = 77,327,019,569.09
  5. Step 5: Solve for x
    x = 77,327,019,569.09/332,287.70
  6. Step 6: Final answer
    x = 232,711.05

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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.