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Finding the Fourth Proportional to 332,403.60, 498,605.40 and 154,928.55

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Solution

The fourth proportional to 332,403.60, 498,605.40 and 154,928.55 is: 232,392.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,403.60 : 498,605.40 = 154,928.55 : x
  2. Step 2: Convert to fraction form
    332,403.60/498,605.40 = 154,928.55/x
  3. Step 3: Cross multiply
    332,403.60x = 498,605.40 × 154,928.55
  4. Step 4: Simplify right side
    332,403.60x = 77,248,211,644.17
  5. Step 5: Solve for x
    x = 77,248,211,644.17/332,403.60
  6. Step 6: Final answer
    x = 232,392.83

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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.