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Finding the Fourth Proportional to 238,751.12, 329,476.72 and 131,329.32

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Solution

The fourth proportional to 238,751.12, 329,476.72 and 131,329.32 is: 181,234.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,751.12 : 329,476.72 = 131,329.32 : x
  2. Step 2: Convert to fraction form
    238,751.12/329,476.72 = 131,329.32/x
  3. Step 3: Cross multiply
    238,751.12x = 329,476.72 × 131,329.32
  4. Step 4: Simplify right side
    238,751.12x = 43,269,953,593.43
  5. Step 5: Solve for x
    x = 43,269,953,593.43/238,751.12
  6. Step 6: Final answer
    x = 181,234.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.