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Finding the Fourth Proportional to 112,125,471.90, 168,188,207.85 and 112,125,471.90

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Solution

The fourth proportional to 112,125,471.90, 168,188,207.85 and 112,125,471.90 is: 168,188,207.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,125,471.90 : 168,188,207.85 = 112,125,471.90 : x
  2. Step 2: Convert to fraction form
    112,125,471.90/168,188,207.85 = 112,125,471.90/x
  3. Step 3: Cross multiply
    112,125,471.90x = 168,188,207.85 × 112,125,471.90
  4. Step 4: Simplify right side
    112,125,471.90x = 18,858,182,173,196,536
  5. Step 5: Solve for x
    x = 18,858,182,173,196,536/112,125,471.90
  6. Step 6: Final answer
    x = 168,188,207.85

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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.