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Finding the Fourth Proportional to 68,437.64, 94,442.92 and 38,223.47

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Solution

The fourth proportional to 68,437.64, 94,442.92 and 38,223.47 is: 52,747.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,437.64 : 94,442.92 = 38,223.47 : x
  2. Step 2: Convert to fraction form
    68,437.64/94,442.92 = 38,223.47/x
  3. Step 3: Cross multiply
    68,437.64x = 94,442.92 × 38,223.47
  4. Step 4: Simplify right side
    68,437.64x = 3,609,935,551.56
  5. Step 5: Solve for x
    x = 3,609,935,551.56/68,437.64
  6. Step 6: Final answer
    x = 52,747.81

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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.