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Finding the Fourth Proportional to 221,781,175.80, 332,671,763.70 and 98,959,255.80

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Solution

The fourth proportional to 221,781,175.80, 332,671,763.70 and 98,959,255.80 is: 148,438,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,781,175.80 : 332,671,763.70 = 98,959,255.80 : x
  2. Step 2: Convert to fraction form
    221,781,175.80/332,671,763.70 = 98,959,255.80/x
  3. Step 3: Cross multiply
    221,781,175.80x = 332,671,763.70 × 98,959,255.80
  4. Step 4: Simplify right side
    221,781,175.80x = 32,920,950,161,425,452
  5. Step 5: Solve for x
    x = 32,920,950,161,425,452/221,781,175.80
  6. Step 6: Final answer
    x = 148,438,883.70

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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.