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Finding the Fourth Proportional to 210,482.26, 290,471.22 and 125,648.56

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Solution

The fourth proportional to 210,482.26, 290,471.22 and 125,648.56 is: 173,398.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,482.26 : 290,471.22 = 125,648.56 : x
  2. Step 2: Convert to fraction form
    210,482.26/290,471.22 = 125,648.56/x
  3. Step 3: Cross multiply
    210,482.26x = 290,471.22 × 125,648.56
  4. Step 4: Simplify right side
    210,482.26x = 36,497,290,514.44
  5. Step 5: Solve for x
    x = 36,497,290,514.44/210,482.26
  6. Step 6: Final answer
    x = 173,398.42

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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.