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Finding the Fourth Proportional to 73,672.40, 101,641.24 and 48,193.28

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Solution

The fourth proportional to 73,672.40, 101,641.24 and 48,193.28 is: 66,489.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,672.40 : 101,641.24 = 48,193.28 : x
  2. Step 2: Convert to fraction form
    73,672.40/101,641.24 = 48,193.28/x
  3. Step 3: Cross multiply
    73,672.40x = 101,641.24 × 48,193.28
  4. Step 4: Simplify right side
    73,672.40x = 4,898,424,738.87
  5. Step 5: Solve for x
    x = 4,898,424,738.87/73,672.40
  6. Step 6: Final answer
    x = 66,489.28

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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.