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Finding the Fourth Proportional to 124,642.92, 171,800.43 and 88,297.80

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Solution

The fourth proportional to 124,642.92, 171,800.43 and 88,297.80 is: 121,704.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,642.92 : 171,800.43 = 88,297.80 : x
  2. Step 2: Convert to fraction form
    124,642.92/171,800.43 = 88,297.80/x
  3. Step 3: Cross multiply
    124,642.92x = 171,800.43 × 88,297.80
  4. Step 4: Simplify right side
    124,642.92x = 15,169,600,008.05
  5. Step 5: Solve for x
    x = 15,169,600,008.05/124,642.92
  6. Step 6: Final answer
    x = 121,704.47

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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.