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Finding the Fourth Proportional to 368,351.25, 552,738.74 and 155,102.34

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Solution

The fourth proportional to 368,351.25, 552,738.74 and 155,102.34 is: 232,742.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,351.25 : 552,738.74 = 155,102.34 : x
  2. Step 2: Convert to fraction form
    368,351.25/552,738.74 = 155,102.34/x
  3. Step 3: Cross multiply
    368,351.25x = 552,738.74 × 155,102.34
  4. Step 4: Simplify right side
    368,351.25x = 85,731,073,279.91
  5. Step 5: Solve for x
    x = 85,731,073,279.91/368,351.25
  6. Step 6: Final answer
    x = 232,742.73

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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.