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Finding the Fourth Proportional to 67,932.66, 101,864.31 and 39,907.45

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Solution

The fourth proportional to 67,932.66, 101,864.31 and 39,907.45 is: 59,840.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,932.66 : 101,864.31 = 39,907.45 : x
  2. Step 2: Convert to fraction form
    67,932.66/101,864.31 = 39,907.45/x
  3. Step 3: Cross multiply
    67,932.66x = 101,864.31 × 39,907.45
  4. Step 4: Simplify right side
    67,932.66x = 4,065,145,162.90
  5. Step 5: Solve for x
    x = 4,065,145,162.90/67,932.66
  6. Step 6: Final answer
    x = 59,840.80

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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.