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Finding the Fourth Proportional to 97,687.99, 134,816.67 and 54,671.79

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Solution

The fourth proportional to 97,687.99, 134,816.67 and 54,671.79 is: 75,451.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,687.99 : 134,816.67 = 54,671.79 : x
  2. Step 2: Convert to fraction form
    97,687.99/134,816.67 = 54,671.79/x
  3. Step 3: Cross multiply
    97,687.99x = 134,816.67 × 54,671.79
  4. Step 4: Simplify right side
    97,687.99x = 7,370,669,176.30
  5. Step 5: Solve for x
    x = 7,370,669,176.30/97,687.99
  6. Step 6: Final answer
    x = 75,451.13

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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.