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Finding the Fourth Proportional to 550,832,146.80, 826,248,220.20 and 141,888,297.30

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Solution

The fourth proportional to 550,832,146.80, 826,248,220.20 and 141,888,297.30 is: 212,832,445.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,832,146.80 : 826,248,220.20 = 141,888,297.30 : x
  2. Step 2: Convert to fraction form
    550,832,146.80/826,248,220.20 = 141,888,297.30/x
  3. Step 3: Cross multiply
    550,832,146.80x = 826,248,220.20 × 141,888,297.30
  4. Step 4: Simplify right side
    550,832,146.80x = 117,234,953,111,333,488
  5. Step 5: Solve for x
    x = 117,234,953,111,333,488/550,832,146.80
  6. Step 6: Final answer
    x = 212,832,445.95

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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.