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Finding the Fourth Proportional to 112,335,310.40, 168,251,023.20 and 112,335,310.40

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Solution

The fourth proportional to 112,335,310.40, 168,251,023.20 and 112,335,310.40 is: 168,251,023.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,335,310.40 : 168,251,023.20 = 112,335,310.40 : x
  2. Step 2: Convert to fraction form
    112,335,310.40/168,251,023.20 = 112,335,310.40/x
  3. Step 3: Cross multiply
    112,335,310.40x = 168,251,023.20 × 112,335,310.40
  4. Step 4: Simplify right side
    112,335,310.40x = 18,900,530,916,289,600
  5. Step 5: Solve for x
    x = 18,900,530,916,289,600/112,335,310.40
  6. Step 6: Final answer
    x = 168,251,023.20

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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.