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Finding the Fourth Proportional to 99,797.76, 137,717.48 and 59,490.74

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Solution

The fourth proportional to 99,797.76, 137,717.48 and 59,490.74 is: 82,095.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,797.76 : 137,717.48 = 59,490.74 : x
  2. Step 2: Convert to fraction form
    99,797.76/137,717.48 = 59,490.74/x
  3. Step 3: Cross multiply
    99,797.76x = 137,717.48 × 59,490.74
  4. Step 4: Simplify right side
    99,797.76x = 8,192,914,796.14
  5. Step 5: Solve for x
    x = 8,192,914,796.14/99,797.76
  6. Step 6: Final answer
    x = 82,095.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.