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Finding the Fourth Proportional to 75,602.01, 113,189.70 and 39,982.61

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Solution

The fourth proportional to 75,602.01, 113,189.70 and 39,982.61 is: 59,861.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,602.01 : 113,189.70 = 39,982.61 : x
  2. Step 2: Convert to fraction form
    75,602.01/113,189.70 = 39,982.61/x
  3. Step 3: Cross multiply
    75,602.01x = 113,189.70 × 39,982.61
  4. Step 4: Simplify right side
    75,602.01x = 4,525,620,064.03
  5. Step 5: Solve for x
    x = 4,525,620,064.03/75,602.01
  6. Step 6: Final answer
    x = 59,861.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.