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Finding the Fourth Proportional to 157,660.67, 236,484.39 and 73,391.87

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Solution

The fourth proportional to 157,660.67, 236,484.39 and 73,391.87 is: 110,084.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,660.67 : 236,484.39 = 73,391.87 : x
  2. Step 2: Convert to fraction form
    157,660.67/236,484.39 = 73,391.87/x
  3. Step 3: Cross multiply
    157,660.67x = 236,484.39 × 73,391.87
  4. Step 4: Simplify right side
    157,660.67x = 17,356,031,607.91
  5. Step 5: Solve for x
    x = 17,356,031,607.91/157,660.67
  6. Step 6: Final answer
    x = 110,084.73

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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.