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Finding the Fourth Proportional to 120,082.60, 179,874.78 and 70,010.83

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Solution

The fourth proportional to 120,082.60, 179,874.78 and 70,010.83 is: 104,871.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,082.60 : 179,874.78 = 70,010.83 : x
  2. Step 2: Convert to fraction form
    120,082.60/179,874.78 = 70,010.83/x
  3. Step 3: Cross multiply
    120,082.60x = 179,874.78 × 70,010.83
  4. Step 4: Simplify right side
    120,082.60x = 12,593,182,606.17
  5. Step 5: Solve for x
    x = 12,593,182,606.17/120,082.60
  6. Step 6: Final answer
    x = 104,871.00

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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.