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Finding the Fourth Proportional to 127,861.70, 191,792.55 and 44,764.10

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Solution

The fourth proportional to 127,861.70, 191,792.55 and 44,764.10 is: 67,146.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,861.70 : 191,792.55 = 44,764.10 : x
  2. Step 2: Convert to fraction form
    127,861.70/191,792.55 = 44,764.10/x
  3. Step 3: Cross multiply
    127,861.70x = 191,792.55 × 44,764.10
  4. Step 4: Simplify right side
    127,861.70x = 8,585,420,887.46
  5. Step 5: Solve for x
    x = 8,585,420,887.46/127,861.70
  6. Step 6: Final answer
    x = 67,146.15

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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.