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Finding the Fourth Proportional to 215,954.66, 297,856.77 and 158,575.97

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Solution

The fourth proportional to 215,954.66, 297,856.77 and 158,575.97 is: 218,716.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,954.66 : 297,856.77 = 158,575.97 : x
  2. Step 2: Convert to fraction form
    215,954.66/297,856.77 = 158,575.97/x
  3. Step 3: Cross multiply
    215,954.66x = 297,856.77 × 158,575.97
  4. Step 4: Simplify right side
    215,954.66x = 47,232,926,223.82
  5. Step 5: Solve for x
    x = 47,232,926,223.82/215,954.66
  6. Step 6: Final answer
    x = 218,716.87

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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.