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Finding the Fourth Proportional to 127,640.75, 191,548.62 and 44,534.75

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Solution

The fourth proportional to 127,640.75, 191,548.62 and 44,534.75 is: 66,832.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,640.75 : 191,548.62 = 44,534.75 : x
  2. Step 2: Convert to fraction form
    127,640.75/191,548.62 = 44,534.75/x
  3. Step 3: Cross multiply
    127,640.75x = 191,548.62 × 44,534.75
  4. Step 4: Simplify right side
    127,640.75x = 8,530,569,904.55
  5. Step 5: Solve for x
    x = 8,530,569,904.55/127,640.75
  6. Step 6: Final answer
    x = 66,832.65

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1.5x scale

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.