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Finding the Fourth Proportional to 80,930,230.30, 121,395,345.45 and 80,930,230.30

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Solution

The fourth proportional to 80,930,230.30, 121,395,345.45 and 80,930,230.30 is: 121,395,345.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,930,230.30 : 121,395,345.45 = 80,930,230.30 : x
  2. Step 2: Convert to fraction form
    80,930,230.30/121,395,345.45 = 80,930,230.30/x
  3. Step 3: Cross multiply
    80,930,230.30x = 121,395,345.45 × 80,930,230.30
  4. Step 4: Simplify right side
    80,930,230.30x = 9,824,553,264,616,558
  5. Step 5: Solve for x
    x = 9,824,553,264,616,558/80,930,230.30
  6. Step 6: Final answer
    x = 121,395,345.45

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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.