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Finding the Fourth Proportional to 159,891.60, 239,772.60 and 54,656.40

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Solution

The fourth proportional to 159,891.60, 239,772.60 and 54,656.40 is: 81,962.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,891.60 : 239,772.60 = 54,656.40 : x
  2. Step 2: Convert to fraction form
    159,891.60/239,772.60 = 54,656.40/x
  3. Step 3: Cross multiply
    159,891.60x = 239,772.60 × 54,656.40
  4. Step 4: Simplify right side
    159,891.60x = 13,105,107,134.64
  5. Step 5: Solve for x
    x = 13,105,107,134.64/159,891.60
  6. Step 6: Final answer
    x = 81,962.45

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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.