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Finding the Fourth Proportional to 67,298,979.60, 100,948,469.40 and 67,298,979.60

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Solution

The fourth proportional to 67,298,979.60, 100,948,469.40 and 67,298,979.60 is: 100,948,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,298,979.60 : 100,948,469.40 = 67,298,979.60 : x
  2. Step 2: Convert to fraction form
    67,298,979.60/100,948,469.40 = 67,298,979.60/x
  3. Step 3: Cross multiply
    67,298,979.60x = 100,948,469.40 × 67,298,979.60
  4. Step 4: Simplify right side
    67,298,979.60x = 6,793,728,982,801,824
  5. Step 5: Solve for x
    x = 6,793,728,982,801,824/67,298,979.60
  6. Step 6: Final answer
    x = 100,948,469.40

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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.