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Finding the Fourth Proportional to 92,717.28, 127,951.20 and 54,467.28

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Solution

The fourth proportional to 92,717.28, 127,951.20 and 54,467.28 is: 75,165.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,717.28 : 127,951.20 = 54,467.28 : x
  2. Step 2: Convert to fraction form
    92,717.28/127,951.20 = 54,467.28/x
  3. Step 3: Cross multiply
    92,717.28x = 127,951.20 × 54,467.28
  4. Step 4: Simplify right side
    92,717.28x = 6,969,153,836.74
  5. Step 5: Solve for x
    x = 6,969,153,836.74/92,717.28
  6. Step 6: Final answer
    x = 75,165.64

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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.