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Finding the Fourth Proportional to 207,374.34, 311,078.78 and 55,593.03

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Solution

The fourth proportional to 207,374.34, 311,078.78 and 55,593.03 is: 83,394.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,374.34 : 311,078.78 = 55,593.03 : x
  2. Step 2: Convert to fraction form
    207,374.34/311,078.78 = 55,593.03/x
  3. Step 3: Cross multiply
    207,374.34x = 311,078.78 × 55,593.03
  4. Step 4: Simplify right side
    207,374.34x = 17,293,813,045.96
  5. Step 5: Solve for x
    x = 17,293,813,045.96/207,374.34
  6. Step 6: Final answer
    x = 83,394.18

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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.