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Finding the Fourth Proportional to 127,489.38, 191,059.11 and 65,028.66

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Solution

The fourth proportional to 127,489.38, 191,059.11 and 65,028.66 is: 97,453.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,489.38 : 191,059.11 = 65,028.66 : x
  2. Step 2: Convert to fraction form
    127,489.38/191,059.11 = 65,028.66/x
  3. Step 3: Cross multiply
    127,489.38x = 191,059.11 × 65,028.66
  4. Step 4: Simplify right side
    127,489.38x = 12,424,317,904.09
  5. Step 5: Solve for x
    x = 12,424,317,904.09/127,489.38
  6. Step 6: Final answer
    x = 97,453.75

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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.