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Finding the Fourth Proportional to 453,195,903.80, 679,793,855.70 and 146,707,974.20

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Solution

The fourth proportional to 453,195,903.80, 679,793,855.70 and 146,707,974.20 is: 220,061,961.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,195,903.80 : 679,793,855.70 = 146,707,974.20 : x
  2. Step 2: Convert to fraction form
    453,195,903.80/679,793,855.70 = 146,707,974.20/x
  3. Step 3: Cross multiply
    453,195,903.80x = 679,793,855.70 × 146,707,974.20
  4. Step 4: Simplify right side
    453,195,903.80x = 99,731,179,443,354,128
  5. Step 5: Solve for x
    x = 99,731,179,443,354,128/453,195,903.80
  6. Step 6: Final answer
    x = 220,061,961.30

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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.