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Finding the Fourth Proportional to 101,751.53, 140,424.30 and 56,433.83

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Solution

The fourth proportional to 101,751.53, 140,424.30 and 56,433.83 is: 77,882.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,751.53 : 140,424.30 = 56,433.83 : x
  2. Step 2: Convert to fraction form
    101,751.53/140,424.30 = 56,433.83/x
  3. Step 3: Cross multiply
    101,751.53x = 140,424.30 × 56,433.83
  4. Step 4: Simplify right side
    101,751.53x = 7,924,680,371.95
  5. Step 5: Solve for x
    x = 7,924,680,371.95/101,751.53
  6. Step 6: Final answer
    x = 77,882.67

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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.