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Finding the Fourth Proportional to 283,826,691.60, 425,740,037.40 and 79,354,438.80

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Solution

The fourth proportional to 283,826,691.60, 425,740,037.40 and 79,354,438.80 is: 119,031,658.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,826,691.60 : 425,740,037.40 = 79,354,438.80 : x
  2. Step 2: Convert to fraction form
    283,826,691.60/425,740,037.40 = 79,354,438.80/x
  3. Step 3: Cross multiply
    283,826,691.60x = 425,740,037.40 × 79,354,438.80
  4. Step 4: Simplify right side
    283,826,691.60x = 33,784,361,742,568,008
  5. Step 5: Solve for x
    x = 33,784,361,742,568,008/283,826,691.60
  6. Step 6: Final answer
    x = 119,031,658.20

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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.