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Finding the Fourth Proportional to 117,908.15, 176,751.05 and 58,687.84

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Solution

The fourth proportional to 117,908.15, 176,751.05 and 58,687.84 is: 87,976.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,908.15 : 176,751.05 = 58,687.84 : x
  2. Step 2: Convert to fraction form
    117,908.15/176,751.05 = 58,687.84/x
  3. Step 3: Cross multiply
    117,908.15x = 176,751.05 × 58,687.84
  4. Step 4: Simplify right side
    117,908.15x = 10,373,136,165.04
  5. Step 5: Solve for x
    x = 10,373,136,165.04/117,908.15
  6. Step 6: Final answer
    x = 87,976.41

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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.