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Finding the Fourth Proportional to 107,366.58, 160,839.21 and 87,397.56

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Solution

The fourth proportional to 107,366.58, 160,839.21 and 87,397.56 is: 130,924.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,366.58 : 160,839.21 = 87,397.56 : x
  2. Step 2: Convert to fraction form
    107,366.58/160,839.21 = 87,397.56/x
  3. Step 3: Cross multiply
    107,366.58x = 160,839.21 × 87,397.56
  4. Step 4: Simplify right side
    107,366.58x = 14,056,954,506.33
  5. Step 5: Solve for x
    x = 14,056,954,506.33/107,366.58
  6. Step 6: Final answer
    x = 130,924.86

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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.