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Finding the Fourth Proportional to 127,861.57, 176,524.57 and 113,675.15

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Solution

The fourth proportional to 127,861.57, 176,524.57 and 113,675.15 is: 156,938.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,861.57 : 176,524.57 = 113,675.15 : x
  2. Step 2: Convert to fraction form
    127,861.57/176,524.57 = 113,675.15/x
  3. Step 3: Cross multiply
    127,861.57x = 176,524.57 × 113,675.15
  4. Step 4: Simplify right side
    127,861.57x = 20,066,456,405.06
  5. Step 5: Solve for x
    x = 20,066,456,405.06/127,861.57
  6. Step 6: Final answer
    x = 156,938.92

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1.5x scale

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.