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Finding the Fourth Proportional to 225,911,793.90, 338,867,690.85 and 157,037,040.30

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Solution

The fourth proportional to 225,911,793.90, 338,867,690.85 and 157,037,040.30 is: 235,555,560.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,911,793.90 : 338,867,690.85 = 157,037,040.30 : x
  2. Step 2: Convert to fraction form
    225,911,793.90/338,867,690.85 = 157,037,040.30/x
  3. Step 3: Cross multiply
    225,911,793.90x = 338,867,690.85 × 157,037,040.30
  4. Step 4: Simplify right side
    225,911,793.90x = 53,214,779,224,379,400
  5. Step 5: Solve for x
    x = 53,214,779,224,379,400/225,911,793.90
  6. Step 6: Final answer
    x = 235,555,560.45

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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.