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Finding the Fourth Proportional to 118,012.53, 162,859.16 and 64,297.53

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Solution

The fourth proportional to 118,012.53, 162,859.16 and 64,297.53 is: 88,731.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,012.53 : 162,859.16 = 64,297.53 : x
  2. Step 2: Convert to fraction form
    118,012.53/162,859.16 = 64,297.53/x
  3. Step 3: Cross multiply
    118,012.53x = 162,859.16 × 64,297.53
  4. Step 4: Simplify right side
    118,012.53x = 10,471,441,524.95
  5. Step 5: Solve for x
    x = 10,471,441,524.95/118,012.53
  6. Step 6: Final answer
    x = 88,731.61

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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.