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Finding the Fourth Proportional to 118,012.92, 162,859.68 and 64,297.92

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Solution

The fourth proportional to 118,012.92, 162,859.68 and 64,297.92 is: 88,732.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,012.92 : 162,859.68 = 64,297.92 : x
  2. Step 2: Convert to fraction form
    118,012.92/162,859.68 = 64,297.92/x
  3. Step 3: Cross multiply
    118,012.92x = 162,859.68 × 64,297.92
  4. Step 4: Simplify right side
    118,012.92x = 10,471,538,675.87
  5. Step 5: Solve for x
    x = 10,471,538,675.87/118,012.92
  6. Step 6: Final answer
    x = 88,732.14

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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.