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Finding the Fourth Proportional to 340,586.76, 510,910.92 and 130,226.52

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Solution

The fourth proportional to 340,586.76, 510,910.92 and 130,226.52 is: 195,351.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,586.76 : 510,910.92 = 130,226.52 : x
  2. Step 2: Convert to fraction form
    340,586.76/510,910.92 = 130,226.52/x
  3. Step 3: Cross multiply
    340,586.76x = 510,910.92 × 130,226.52
  4. Step 4: Simplify right side
    340,586.76x = 66,534,151,141.60
  5. Step 5: Solve for x
    x = 66,534,151,141.60/340,586.76
  6. Step 6: Final answer
    x = 195,351.55

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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.