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Finding the Fourth Proportional to 118,093.65, 162,965.45 and 64,377.81

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Solution

The fourth proportional to 118,093.65, 162,965.45 and 64,377.81 is: 88,839.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,093.65 : 162,965.45 = 64,377.81 : x
  2. Step 2: Convert to fraction form
    118,093.65/162,965.45 = 64,377.81/x
  3. Step 3: Cross multiply
    118,093.65x = 162,965.45 × 64,377.81
  4. Step 4: Simplify right side
    118,093.65x = 10,491,358,454.78
  5. Step 5: Solve for x
    x = 10,491,358,454.78/118,093.65
  6. Step 6: Final answer
    x = 88,839.31

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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.