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Finding the Fourth Proportional to 159,601.05, 239,472.10 and 83,681.44

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Solution

The fourth proportional to 159,601.05, 239,472.10 and 83,681.44 is: 125,559.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,601.05 : 239,472.10 = 83,681.44 : x
  2. Step 2: Convert to fraction form
    159,601.05/239,472.10 = 83,681.44/x
  3. Step 3: Cross multiply
    159,601.05x = 239,472.10 × 83,681.44
  4. Step 4: Simplify right side
    159,601.05x = 20,039,370,971.02
  5. Step 5: Solve for x
    x = 20,039,370,971.02/159,601.05
  6. Step 6: Final answer
    x = 125,559.14

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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.