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Finding the Fourth Proportional to 293,220.78, 439,865.79 and 93,471.14

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Solution

The fourth proportional to 293,220.78, 439,865.79 and 93,471.14 is: 140,217.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,220.78 : 439,865.79 = 93,471.14 : x
  2. Step 2: Convert to fraction form
    293,220.78/439,865.79 = 93,471.14/x
  3. Step 3: Cross multiply
    293,220.78x = 439,865.79 × 93,471.14
  4. Step 4: Simplify right side
    293,220.78x = 41,114,754,638.97
  5. Step 5: Solve for x
    x = 41,114,754,638.97/293,220.78
  6. Step 6: Final answer
    x = 140,217.74

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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.