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Finding the Fourth Proportional to 131,064.75, 180,867.69 and 73,713.58

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Solution

The fourth proportional to 131,064.75, 180,867.69 and 73,713.58 is: 101,723.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,064.75 : 180,867.69 = 73,713.58 : x
  2. Step 2: Convert to fraction form
    131,064.75/180,867.69 = 73,713.58/x
  3. Step 3: Cross multiply
    131,064.75x = 180,867.69 × 73,713.58
  4. Step 4: Simplify right side
    131,064.75x = 13,332,404,484.06
  5. Step 5: Solve for x
    x = 13,332,404,484.06/131,064.75
  6. Step 6: Final answer
    x = 101,723.80

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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.