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Finding the Fourth Proportional to 60,481,811.70, 90,722,717.55 and 54,246,237.30

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Solution

The fourth proportional to 60,481,811.70, 90,722,717.55 and 54,246,237.30 is: 81,369,355.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,481,811.70 : 90,722,717.55 = 54,246,237.30 : x
  2. Step 2: Convert to fraction form
    60,481,811.70/90,722,717.55 = 54,246,237.30/x
  3. Step 3: Cross multiply
    60,481,811.70x = 90,722,717.55 × 54,246,237.30
  4. Step 4: Simplify right side
    60,481,811.70x = 4,921,366,064,718,174
  5. Step 5: Solve for x
    x = 4,921,366,064,718,174/60,481,811.70
  6. Step 6: Final answer
    x = 81,369,355.95

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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.