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Finding the Fourth Proportional to 130,343.67, 179,874.18 and 70,727.67

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Solution

The fourth proportional to 130,343.67, 179,874.18 and 70,727.67 is: 97,604.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,343.67 : 179,874.18 = 70,727.67 : x
  2. Step 2: Convert to fraction form
    130,343.67/179,874.18 = 70,727.67/x
  3. Step 3: Cross multiply
    130,343.67x = 179,874.18 × 70,727.67
  4. Step 4: Simplify right side
    130,343.67x = 12,722,081,644.56
  5. Step 5: Solve for x
    x = 12,722,081,644.56/130,343.67
  6. Step 6: Final answer
    x = 97,604.14

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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.