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Finding the Fourth Proportional to 232,940.21, 349,161.17 and 120,507.21

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Solution

The fourth proportional to 232,940.21, 349,161.17 and 120,507.21 is: 180,631.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,940.21 : 349,161.17 = 120,507.21 : x
  2. Step 2: Convert to fraction form
    232,940.21/349,161.17 = 120,507.21/x
  3. Step 3: Cross multiply
    232,940.21x = 349,161.17 × 120,507.21
  4. Step 4: Simplify right side
    232,940.21x = 42,076,437,834.50
  5. Step 5: Solve for x
    x = 42,076,437,834.50/232,940.21
  6. Step 6: Final answer
    x = 180,631.93

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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.