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Finding the Fourth Proportional to 103,988.52, 143,504.18 and 58,676.11

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Solution

The fourth proportional to 103,988.52, 143,504.18 and 58,676.11 is: 80,973.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,988.52 : 143,504.18 = 58,676.11 : x
  2. Step 2: Convert to fraction form
    103,988.52/143,504.18 = 58,676.11/x
  3. Step 3: Cross multiply
    103,988.52x = 143,504.18 × 58,676.11
  4. Step 4: Simplify right side
    103,988.52x = 8,420,267,051.14
  5. Step 5: Solve for x
    x = 8,420,267,051.14/103,988.52
  6. Step 6: Final answer
    x = 80,973.04

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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.