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Finding the Fourth Proportional to 321,840,603.20, 482,760,904.80 and 117,375,348.80

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Solution

The fourth proportional to 321,840,603.20, 482,760,904.80 and 117,375,348.80 is: 176,063,023.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,840,603.20 : 482,760,904.80 = 117,375,348.80 : x
  2. Step 2: Convert to fraction form
    321,840,603.20/482,760,904.80 = 117,375,348.80/x
  3. Step 3: Cross multiply
    321,840,603.20x = 482,760,904.80 × 117,375,348.80
  4. Step 4: Simplify right side
    321,840,603.20x = 56,664,229,587,903,592
  5. Step 5: Solve for x
    x = 56,664,229,587,903,592/321,840,603.20
  6. Step 6: Final answer
    x = 176,063,023.20

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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.