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Finding the Fourth Proportional to 225,911,712.40, 338,867,568.60 and 157,036,958.80

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Solution

The fourth proportional to 225,911,712.40, 338,867,568.60 and 157,036,958.80 is: 235,555,438.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,911,712.40 : 338,867,568.60 = 157,036,958.80 : x
  2. Step 2: Convert to fraction form
    225,911,712.40/338,867,568.60 = 157,036,958.80/x
  3. Step 3: Cross multiply
    225,911,712.40x = 338,867,568.60 × 157,036,958.80
  4. Step 4: Simplify right side
    225,911,712.40x = 53,214,732,408,894,384
  5. Step 5: Solve for x
    x = 53,214,732,408,894,384/225,911,712.40
  6. Step 6: Final answer
    x = 235,555,438.20

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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.