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Finding the Fourth Proportional to 92,758.68, 127,910.76 and 79,374.24

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Solution

The fourth proportional to 92,758.68, 127,910.76 and 79,374.24 is: 109,454.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,758.68 : 127,910.76 = 79,374.24 : x
  2. Step 2: Convert to fraction form
    92,758.68/127,910.76 = 79,374.24/x
  3. Step 3: Cross multiply
    92,758.68x = 127,910.76 × 79,374.24
  4. Step 4: Simplify right side
    92,758.68x = 10,152,819,362.82
  5. Step 5: Solve for x
    x = 10,152,819,362.82/92,758.68
  6. Step 6: Final answer
    x = 109,454.12

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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.