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Finding the Fourth Proportional to 92,408.40, 129,634.20 and 92,408.40

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Solution

The fourth proportional to 92,408.40, 129,634.20 and 92,408.40 is: 129,634.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,408.40 : 129,634.20 = 92,408.40 : x
  2. Step 2: Convert to fraction form
    92,408.40/129,634.20 = 92,408.40/x
  3. Step 3: Cross multiply
    92,408.40x = 129,634.20 × 92,408.40
  4. Step 4: Simplify right side
    92,408.40x = 11,979,289,007.28
  5. Step 5: Solve for x
    x = 11,979,289,007.28/92,408.40
  6. Step 6: Final answer
    x = 129,634.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.