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Finding the Fourth Proportional to 338,351.76, 507,586.20 and 113,734.16

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Solution

The fourth proportional to 338,351.76, 507,586.20 and 113,734.16 is: 170,620.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,351.76 : 507,586.20 = 113,734.16 : x
  2. Step 2: Convert to fraction form
    338,351.76/507,586.20 = 113,734.16/x
  3. Step 3: Cross multiply
    338,351.76x = 507,586.20 × 113,734.16
  4. Step 4: Simplify right side
    338,351.76x = 57,729,890,084.59
  5. Step 5: Solve for x
    x = 57,729,890,084.59/338,351.76
  6. Step 6: Final answer
    x = 170,620.92

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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.