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Finding the Fourth Proportional to 283,859,661.54, 425,786,650.82 and 89,771,109.78

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Solution

The fourth proportional to 283,859,661.54, 425,786,650.82 and 89,771,109.78 is: 134,655,766.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,859,661.54 : 425,786,650.82 = 89,771,109.78 : x
  2. Step 2: Convert to fraction form
    283,859,661.54/425,786,650.82 = 89,771,109.78/x
  3. Step 3: Cross multiply
    283,859,661.54x = 425,786,650.82 × 89,771,109.78
  4. Step 4: Simplify right side
    283,859,661.54x = 38,223,340,173,620,744
  5. Step 5: Solve for x
    x = 38,223,340,173,620,744/283,859,661.54
  6. Step 6: Final answer
    x = 134,655,766.04

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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.