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Finding the Fourth Proportional to 67,957.78, 101,973.33 and 39,932.59

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Solution

The fourth proportional to 67,957.78, 101,973.33 and 39,932.59 is: 59,920.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,957.78 : 101,973.33 = 39,932.59 : x
  2. Step 2: Convert to fraction form
    67,957.78/101,973.33 = 39,932.59/x
  3. Step 3: Cross multiply
    67,957.78x = 101,973.33 × 39,932.59
  4. Step 4: Simplify right side
    67,957.78x = 4,072,059,177.82
  5. Step 5: Solve for x
    x = 4,072,059,177.82/67,957.78
  6. Step 6: Final answer
    x = 59,920.43

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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.