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Finding the Fourth Proportional to 104,028.52, 143,578.78 and 59,316.52

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Solution

The fourth proportional to 104,028.52, 143,578.78 and 59,316.52 is: 81,867.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,028.52 : 143,578.78 = 59,316.52 : x
  2. Step 2: Convert to fraction form
    104,028.52/143,578.78 = 59,316.52/x
  3. Step 3: Cross multiply
    104,028.52x = 143,578.78 × 59,316.52
  4. Step 4: Simplify right side
    104,028.52x = 8,516,593,575.45
  5. Step 5: Solve for x
    x = 8,516,593,575.45/104,028.52
  6. Step 6: Final answer
    x = 81,867.87

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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.