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Finding the Fourth Proportional to 111,732.86, 154,193.02 and 60,745.47

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Solution

The fourth proportional to 111,732.86, 154,193.02 and 60,745.47 is: 83,829.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,732.86 : 154,193.02 = 60,745.47 : x
  2. Step 2: Convert to fraction form
    111,732.86/154,193.02 = 60,745.47/x
  3. Step 3: Cross multiply
    111,732.86x = 154,193.02 × 60,745.47
  4. Step 4: Simplify right side
    111,732.86x = 9,366,527,558.61
  5. Step 5: Solve for x
    x = 9,366,527,558.61/111,732.86
  6. Step 6: Final answer
    x = 83,829.66

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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.