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Finding the Fourth Proportional to 101,562.56, 152,402.14 and 79,313.48

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Solution

The fourth proportional to 101,562.56, 152,402.14 and 79,313.48 is: 119,015.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,562.56 : 152,402.14 = 79,313.48 : x
  2. Step 2: Convert to fraction form
    101,562.56/152,402.14 = 79,313.48/x
  3. Step 3: Cross multiply
    101,562.56x = 152,402.14 × 79,313.48
  4. Step 4: Simplify right side
    101,562.56x = 12,087,544,082.85
  5. Step 5: Solve for x
    x = 12,087,544,082.85/101,562.56
  6. Step 6: Final answer
    x = 119,015.75

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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.