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Finding the Fourth Proportional to 225,911,794.40, 338,867,691.60 and 157,037,040.80

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Solution

The fourth proportional to 225,911,794.40, 338,867,691.60 and 157,037,040.80 is: 235,555,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,911,794.40 : 338,867,691.60 = 157,037,040.80 : x
  2. Step 2: Convert to fraction form
    225,911,794.40/338,867,691.60 = 157,037,040.80/x
  3. Step 3: Cross multiply
    225,911,794.40x = 338,867,691.60 × 157,037,040.80
  4. Step 4: Simplify right side
    225,911,794.40x = 53,214,779,511,591,024
  5. Step 5: Solve for x
    x = 53,214,779,511,591,024/225,911,794.40
  6. Step 6: Final answer
    x = 235,555,561.20

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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.