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Finding the Fourth Proportional to 92,447.76, 127,154.70 and 76,200.78

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Solution

The fourth proportional to 92,447.76, 127,154.70 and 76,200.78 is: 104,808.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,447.76 : 127,154.70 = 76,200.78 : x
  2. Step 2: Convert to fraction form
    92,447.76/127,154.70 = 76,200.78/x
  3. Step 3: Cross multiply
    92,447.76x = 127,154.70 × 76,200.78
  4. Step 4: Simplify right side
    92,447.76x = 9,689,287,320.67
  5. Step 5: Solve for x
    x = 9,689,287,320.67/92,447.76
  6. Step 6: Final answer
    x = 104,808.24

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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.