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Finding the Fourth Proportional to 61,490.80, 92,177.16 and 39,241.36

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Solution

The fourth proportional to 61,490.80, 92,177.16 and 39,241.36 is: 58,824.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,490.80 : 92,177.16 = 39,241.36 : x
  2. Step 2: Convert to fraction form
    61,490.80/92,177.16 = 39,241.36/x
  3. Step 3: Cross multiply
    61,490.80x = 92,177.16 × 39,241.36
  4. Step 4: Simplify right side
    61,490.80x = 3,617,157,119.34
  5. Step 5: Solve for x
    x = 3,617,157,119.34/61,490.80
  6. Step 6: Final answer
    x = 58,824.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.