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Finding the Fourth Proportional to 293,044.28, 439,619.09 and 103,614.62

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Solution

The fourth proportional to 293,044.28, 439,619.09 and 103,614.62 is: 155,440.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,044.28 : 439,619.09 = 103,614.62 : x
  2. Step 2: Convert to fraction form
    293,044.28/439,619.09 = 103,614.62/x
  3. Step 3: Cross multiply
    293,044.28x = 439,619.09 × 103,614.62
  4. Step 4: Simplify right side
    293,044.28x = 45,550,962,238.93
  5. Step 5: Solve for x
    x = 45,550,962,238.93/293,044.28
  6. Step 6: Final answer
    x = 155,440.55

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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.