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Finding the Fourth Proportional to 159,725.46, 239,384.68 and 84,881.46

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Solution

The fourth proportional to 159,725.46, 239,384.68 and 84,881.46 is: 127,214.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,725.46 : 239,384.68 = 84,881.46 : x
  2. Step 2: Convert to fraction form
    159,725.46/239,384.68 = 84,881.46/x
  3. Step 3: Cross multiply
    159,725.46x = 239,384.68 × 84,881.46
  4. Step 4: Simplify right side
    159,725.46x = 20,319,321,140.03
  5. Step 5: Solve for x
    x = 20,319,321,140.03/159,725.46
  6. Step 6: Final answer
    x = 127,214.04

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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.