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Finding the Fourth Proportional to 159,502.80, 239,286.60 and 54,332.40

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Solution

The fourth proportional to 159,502.80, 239,286.60 and 54,332.40 is: 81,509.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,502.80 : 239,286.60 = 54,332.40 : x
  2. Step 2: Convert to fraction form
    159,502.80/239,286.60 = 54,332.40/x
  3. Step 3: Cross multiply
    159,502.80x = 239,286.60 × 54,332.40
  4. Step 4: Simplify right side
    159,502.80x = 13,001,015,265.84
  5. Step 5: Solve for x
    x = 13,001,015,265.84/159,502.80
  6. Step 6: Final answer
    x = 81,509.64

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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.