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Finding the Fourth Proportional to 83,992,993.30, 125,989,489.95 and 23,408,719.30

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Solution

The fourth proportional to 83,992,993.30, 125,989,489.95 and 23,408,719.30 is: 35,113,078.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,992,993.30 : 125,989,489.95 = 23,408,719.30 : x
  2. Step 2: Convert to fraction form
    83,992,993.30/125,989,489.95 = 23,408,719.30/x
  3. Step 3: Cross multiply
    83,992,993.30x = 125,989,489.95 × 23,408,719.30
  4. Step 4: Simplify right side
    83,992,993.30x = 2,949,252,604,989,721
  5. Step 5: Solve for x
    x = 2,949,252,604,989,721/83,992,993.30
  6. Step 6: Final answer
    x = 35,113,078.95

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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.