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Finding the Fourth Proportional to 102,610.70, 153,916.05 and 36,125.90

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Solution

The fourth proportional to 102,610.70, 153,916.05 and 36,125.90 is: 54,188.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,610.70 : 153,916.05 = 36,125.90 : x
  2. Step 2: Convert to fraction form
    102,610.70/153,916.05 = 36,125.90/x
  3. Step 3: Cross multiply
    102,610.70x = 153,916.05 × 36,125.90
  4. Step 4: Simplify right side
    102,610.70x = 5,560,355,830.70
  5. Step 5: Solve for x
    x = 5,560,355,830.70/102,610.70
  6. Step 6: Final answer
    x = 54,188.85

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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.