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Finding the Fourth Proportional to 117,482.85, 162,125.78 and 63,767.41

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Solution

The fourth proportional to 117,482.85, 162,125.78 and 63,767.41 is: 87,998.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,482.85 : 162,125.78 = 63,767.41 : x
  2. Step 2: Convert to fraction form
    117,482.85/162,125.78 = 63,767.41/x
  3. Step 3: Cross multiply
    117,482.85x = 162,125.78 × 63,767.41
  4. Step 4: Simplify right side
    117,482.85x = 10,338,340,360.68
  5. Step 5: Solve for x
    x = 10,338,340,360.68/117,482.85
  6. Step 6: Final answer
    x = 87,998.72

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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.