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Finding the Fourth Proportional to 69,888.78, 96,443.97 and 38,056.98

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Solution

The fourth proportional to 69,888.78, 96,443.97 and 38,056.98 is: 52,517.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,888.78 : 96,443.97 = 38,056.98 : x
  2. Step 2: Convert to fraction form
    69,888.78/96,443.97 = 38,056.98/x
  3. Step 3: Cross multiply
    69,888.78x = 96,443.97 × 38,056.98
  4. Step 4: Simplify right side
    69,888.78x = 3,670,366,237.41
  5. Step 5: Solve for x
    x = 3,670,366,237.41/69,888.78
  6. Step 6: Final answer
    x = 52,517.25

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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.