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Finding the Fourth Proportional to 92,419.40, 127,259.17 and 76,226.49

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Solution

The fourth proportional to 92,419.40, 127,259.17 and 76,226.49 is: 104,961.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,419.40 : 127,259.17 = 76,226.49 : x
  2. Step 2: Convert to fraction form
    92,419.40/127,259.17 = 76,226.49/x
  3. Step 3: Cross multiply
    92,419.40x = 127,259.17 × 76,226.49
  4. Step 4: Simplify right side
    92,419.40x = 9,700,519,658.85
  5. Step 5: Solve for x
    x = 9,700,519,658.85/92,419.40
  6. Step 6: Final answer
    x = 104,961.94

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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.