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Finding the Fourth Proportional to 238,887.99, 329,657.15 and 131,447.97

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Solution

The fourth proportional to 238,887.99, 329,657.15 and 131,447.97 is: 181,393.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,887.99 : 329,657.15 = 131,447.97 : x
  2. Step 2: Convert to fraction form
    238,887.99/329,657.15 = 131,447.97/x
  3. Step 3: Cross multiply
    238,887.99x = 329,657.15 × 131,447.97
  4. Step 4: Simplify right side
    238,887.99x = 43,332,762,506.25
  5. Step 5: Solve for x
    x = 43,332,762,506.25/238,887.99
  6. Step 6: Final answer
    x = 181,393.64

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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.