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Finding the Fourth Proportional to 344,700.74, 516,772.20 and 155,022.20

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Solution

The fourth proportional to 344,700.74, 516,772.20 and 155,022.20 is: 232,407.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,700.74 : 516,772.20 = 155,022.20 : x
  2. Step 2: Convert to fraction form
    344,700.74/516,772.20 = 155,022.20/x
  3. Step 3: Cross multiply
    344,700.74x = 516,772.20 × 155,022.20
  4. Step 4: Simplify right side
    344,700.74x = 80,111,163,342.84
  5. Step 5: Solve for x
    x = 80,111,163,342.84/344,700.74
  6. Step 6: Final answer
    x = 232,407.87

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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.