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Finding the Fourth Proportional to 124,320.30, 171,562.03 and 67,731.67

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Solution

The fourth proportional to 124,320.30, 171,562.03 and 67,731.67 is: 93,469.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,320.30 : 171,562.03 = 67,731.67 : x
  2. Step 2: Convert to fraction form
    124,320.30/171,562.03 = 67,731.67/x
  3. Step 3: Cross multiply
    124,320.30x = 171,562.03 × 67,731.67
  4. Step 4: Simplify right side
    124,320.30x = 11,620,182,461.83
  5. Step 5: Solve for x
    x = 11,620,182,461.83/124,320.30
  6. Step 6: Final answer
    x = 93,469.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.