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Finding the Fourth Proportional to 253,523.24, 349,866.21 and 138,799.97

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Solution

The fourth proportional to 253,523.24, 349,866.21 and 138,799.97 is: 191,546.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,523.24 : 349,866.21 = 138,799.97 : x
  2. Step 2: Convert to fraction form
    253,523.24/349,866.21 = 138,799.97/x
  3. Step 3: Cross multiply
    253,523.24x = 349,866.21 × 138,799.97
  4. Step 4: Simplify right side
    253,523.24x = 48,561,417,702.68
  5. Step 5: Solve for x
    x = 48,561,417,702.68/253,523.24
  6. Step 6: Final answer
    x = 191,546.22

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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.