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Finding the Fourth Proportional to 64,949.76, 97,250.56 and 45,186.56

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Solution

The fourth proportional to 64,949.76, 97,250.56 and 45,186.56 is: 67,658.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,949.76 : 97,250.56 = 45,186.56 : x
  2. Step 2: Convert to fraction form
    64,949.76/97,250.56 = 45,186.56/x
  3. Step 3: Cross multiply
    64,949.76x = 97,250.56 × 45,186.56
  4. Step 4: Simplify right side
    64,949.76x = 4,394,418,264.47
  5. Step 5: Solve for x
    x = 4,394,418,264.47/64,949.76
  6. Step 6: Final answer
    x = 67,658.73

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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.