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Finding the Fourth Proportional to 92,715.68, 127,947.69 and 50,274.20

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Solution

The fourth proportional to 92,715.68, 127,947.69 and 50,274.20 is: 69,378.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,715.68 : 127,947.69 = 50,274.20 : x
  2. Step 2: Convert to fraction form
    92,715.68/127,947.69 = 50,274.20/x
  3. Step 3: Cross multiply
    92,715.68x = 127,947.69 × 50,274.20
  4. Step 4: Simplify right side
    92,715.68x = 6,432,467,116.86
  5. Step 5: Solve for x
    x = 6,432,467,116.86/92,715.68
  6. Step 6: Final answer
    x = 69,378.42

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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.