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Finding the Fourth Proportional to 219,442,003.60, 306,815,697.20 and 219,442,003.60

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Solution

The fourth proportional to 219,442,003.60, 306,815,697.20 and 219,442,003.60 is: 306,815,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,442,003.60 : 306,815,697.20 = 219,442,003.60 : x
  2. Step 2: Convert to fraction form
    219,442,003.60/306,815,697.20 = 219,442,003.60/x
  3. Step 3: Cross multiply
    219,442,003.60x = 306,815,697.20 × 219,442,003.60
  4. Step 4: Simplify right side
    219,442,003.60x = 67,328,251,329,498,904
  5. Step 5: Solve for x
    x = 67,328,251,329,498,904/219,442,003.60
  6. Step 6: Final answer
    x = 306,815,697.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.