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Finding the Fourth Proportional to 67,208,575.45, 100,812,863.18 and 67,208,575.45

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Solution

The fourth proportional to 67,208,575.45, 100,812,863.18 and 67,208,575.45 is: 100,812,863.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,208,575.45 : 100,812,863.18 = 67,208,575.45 : x
  2. Step 2: Convert to fraction form
    67,208,575.45/100,812,863.18 = 67,208,575.45/x
  3. Step 3: Cross multiply
    67,208,575.45x = 100,812,863.18 × 67,208,575.45
  4. Step 4: Simplify right side
    67,208,575.45x = 6,775,488,921,027,514
  5. Step 5: Solve for x
    x = 6,775,488,921,027,514/67,208,575.45
  6. Step 6: Final answer
    x = 100,812,863.18

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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.