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Finding the Fourth Proportional to 104,295.84, 143,919.36 and 58,971.60

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Solution

The fourth proportional to 104,295.84, 143,919.36 and 58,971.60 is: 81,375.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,295.84 : 143,919.36 = 58,971.60 : x
  2. Step 2: Convert to fraction form
    104,295.84/143,919.36 = 58,971.60/x
  3. Step 3: Cross multiply
    104,295.84x = 143,919.36 × 58,971.60
  4. Step 4: Simplify right side
    104,295.84x = 8,487,154,930.18
  5. Step 5: Solve for x
    x = 8,487,154,930.18/104,295.84
  6. Step 6: Final answer
    x = 81,375.78

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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.