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Finding the Fourth Proportional to 104,699.76, 144,453.69 and 59,375.40

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Solution

The fourth proportional to 104,699.76, 144,453.69 and 59,375.40 is: 81,919.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,699.76 : 144,453.69 = 59,375.40 : x
  2. Step 2: Convert to fraction form
    104,699.76/144,453.69 = 59,375.40/x
  3. Step 3: Cross multiply
    104,699.76x = 144,453.69 × 59,375.40
  4. Step 4: Simplify right side
    104,699.76x = 8,576,995,625.23
  5. Step 5: Solve for x
    x = 8,576,995,625.23/104,699.76
  6. Step 6: Final answer
    x = 81,919.92

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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.