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Finding the Fourth Proportional to 342,655.56, 513,687.72 and 164,918.04

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Solution

The fourth proportional to 342,655.56, 513,687.72 and 164,918.04 is: 247,234.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,655.56 : 513,687.72 = 164,918.04 : x
  2. Step 2: Convert to fraction form
    342,655.56/513,687.72 = 164,918.04/x
  3. Step 3: Cross multiply
    342,655.56x = 513,687.72 × 164,918.04
  4. Step 4: Simplify right side
    342,655.56x = 84,716,371,954.47
  5. Step 5: Solve for x
    x = 84,716,371,954.47/342,655.56
  6. Step 6: Final answer
    x = 247,234.78

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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.