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Finding the Fourth Proportional to 69,381.09, 95,787.16 and 45,549.54

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Solution

The fourth proportional to 69,381.09, 95,787.16 and 45,549.54 is: 62,885.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,381.09 : 95,787.16 = 45,549.54 : x
  2. Step 2: Convert to fraction form
    69,381.09/95,787.16 = 45,549.54/x
  3. Step 3: Cross multiply
    69,381.09x = 95,787.16 × 45,549.54
  4. Step 4: Simplify right side
    69,381.09x = 4,363,060,962.03
  5. Step 5: Solve for x
    x = 4,363,060,962.03/69,381.09
  6. Step 6: Final answer
    x = 62,885.45

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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.