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Finding the Fourth Proportional to 101,644,672.88, 152,472,821.80 and 28,855,760.24

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Solution

The fourth proportional to 101,644,672.88, 152,472,821.80 and 28,855,760.24 is: 43,285,290.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,644,672.88 : 152,472,821.80 = 28,855,760.24 : x
  2. Step 2: Convert to fraction form
    101,644,672.88/152,472,821.80 = 28,855,760.24/x
  3. Step 3: Cross multiply
    101,644,672.88x = 152,472,821.80 × 28,855,760.24
  4. Step 4: Simplify right side
    101,644,672.88x = 4,399,719,188,977,045.50
  5. Step 5: Solve for x
    x = 4,399,719,188,977,045.50/101,644,672.88
  6. Step 6: Final answer
    x = 43,285,290.46

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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.