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Finding the Fourth Proportional to 232,427.80, 348,738.90 and 74,704.60

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Solution

The fourth proportional to 232,427.80, 348,738.90 and 74,704.60 is: 112,088.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,427.80 : 348,738.90 = 74,704.60 : x
  2. Step 2: Convert to fraction form
    232,427.80/348,738.90 = 74,704.60/x
  3. Step 3: Cross multiply
    232,427.80x = 348,738.90 × 74,704.60
  4. Step 4: Simplify right side
    232,427.80x = 26,052,400,028.94
  5. Step 5: Solve for x
    x = 26,052,400,028.94/232,427.80
  6. Step 6: Final answer
    x = 112,088.14

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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.