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Finding the Fourth Proportional to 69,437.88, 95,822.46 and 39,225.96

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Solution

The fourth proportional to 69,437.88, 95,822.46 and 39,225.96 is: 54,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,437.88 : 95,822.46 = 39,225.96 : x
  2. Step 2: Convert to fraction form
    69,437.88/95,822.46 = 39,225.96/x
  3. Step 3: Cross multiply
    69,437.88x = 95,822.46 × 39,225.96
  4. Step 4: Simplify right side
    69,437.88x = 3,758,727,983.06
  5. Step 5: Solve for x
    x = 3,758,727,983.06/69,437.88
  6. Step 6: Final answer
    x = 54,130.80

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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.