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Finding the Fourth Proportional to 245,619,167.70, 368,428,751.55 and 225,530,697.90

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Solution

The fourth proportional to 245,619,167.70, 368,428,751.55 and 225,530,697.90 is: 338,296,046.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,619,167.70 : 368,428,751.55 = 225,530,697.90 : x
  2. Step 2: Convert to fraction form
    245,619,167.70/368,428,751.55 = 225,530,697.90/x
  3. Step 3: Cross multiply
    245,619,167.70x = 368,428,751.55 × 225,530,697.90
  4. Step 4: Simplify right side
    245,619,167.70x = 83,091,993,463,497,216
  5. Step 5: Solve for x
    x = 83,091,993,463,497,216/245,619,167.70
  6. Step 6: Final answer
    x = 338,296,046.85

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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.