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Finding the Fourth Proportional to 83,612,272.20, 125,418,408.30 and 83,612,272.20

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Solution

The fourth proportional to 83,612,272.20, 125,418,408.30 and 83,612,272.20 is: 125,418,408.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,612,272.20 : 125,418,408.30 = 83,612,272.20 : x
  2. Step 2: Convert to fraction form
    83,612,272.20/125,418,408.30 = 83,612,272.20/x
  3. Step 3: Cross multiply
    83,612,272.20x = 125,418,408.30 × 83,612,272.20
  4. Step 4: Simplify right side
    83,612,272.20x = 10,486,518,093,670,340
  5. Step 5: Solve for x
    x = 10,486,518,093,670,340/83,612,272.20
  6. Step 6: Final answer
    x = 125,418,408.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.