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Finding the Fourth Proportional to 159,487.56, 239,153.52 and 91,091.16

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Solution

The fourth proportional to 159,487.56, 239,153.52 and 91,091.16 is: 136,592.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,487.56 : 239,153.52 = 91,091.16 : x
  2. Step 2: Convert to fraction form
    159,487.56/239,153.52 = 91,091.16/x
  3. Step 3: Cross multiply
    159,487.56x = 239,153.52 × 91,091.16
  4. Step 4: Simplify right side
    159,487.56x = 21,784,771,554.88
  5. Step 5: Solve for x
    x = 21,784,771,554.88/159,487.56
  6. Step 6: Final answer
    x = 136,592.29

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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.