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Finding the Fourth Proportional to 76,961,753.73, 115,442,630.64 and 19,454,024.90

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Solution

The fourth proportional to 76,961,753.73, 115,442,630.64 and 19,454,024.90 is: 29,181,037.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,961,753.73 : 115,442,630.64 = 19,454,024.90 : x
  2. Step 2: Convert to fraction form
    76,961,753.73/115,442,630.64 = 19,454,024.90/x
  3. Step 3: Cross multiply
    76,961,753.73x = 115,442,630.64 × 19,454,024.90
  4. Step 4: Simplify right side
    76,961,753.73x = 2,245,823,810,576,639
  5. Step 5: Solve for x
    x = 2,245,823,810,576,639/76,961,753.73
  6. Step 6: Final answer
    x = 29,181,037.35

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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.