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Finding the Fourth Proportional to 344,615.13, 516,728.30 and 134,011.89

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Solution

The fourth proportional to 344,615.13, 516,728.30 and 134,011.89 is: 200,942.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,615.13 : 516,728.30 = 134,011.89 : x
  2. Step 2: Convert to fraction form
    344,615.13/516,728.30 = 134,011.89/x
  3. Step 3: Cross multiply
    344,615.13x = 516,728.30 × 134,011.89
  4. Step 4: Simplify right side
    344,615.13x = 69,247,735,429.43
  5. Step 5: Solve for x
    x = 69,247,735,429.43/344,615.13
  6. Step 6: Final answer
    x = 200,942.24

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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.