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Finding the Fourth Proportional to 232,491, 348,739.74 and 66,279

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Solution

The fourth proportional to 232,491, 348,739.74 and 66,279 is: 99,419.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,491 : 348,739.74 = 66,279 : x
  2. Step 2: Convert to fraction form
    232,491/348,739.74 = 66,279/x
  3. Step 3: Cross multiply
    232,491x = 348,739.74 × 66,279
  4. Step 4: Simplify right side
    232,491x = 23,114,121,227.46
  5. Step 5: Solve for x
    x = 23,114,121,227.46/232,491
  6. Step 6: Final answer
    x = 99,419.42

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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.