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Finding the Fourth Proportional to 61,123.30, 91,738.95 and 36,132.10

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Solution

The fourth proportional to 61,123.30, 91,738.95 and 36,132.10 is: 54,230.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,123.30 : 91,738.95 = 36,132.10 : x
  2. Step 2: Convert to fraction form
    61,123.30/91,738.95 = 36,132.10/x
  3. Step 3: Cross multiply
    61,123.30x = 91,738.95 × 36,132.10
  4. Step 4: Simplify right side
    61,123.30x = 3,314,720,915.30
  5. Step 5: Solve for x
    x = 3,314,720,915.30/61,123.30
  6. Step 6: Final answer
    x = 54,230.07

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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.