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Finding the Fourth Proportional to 159,600.33, 220,249.98 and 87,983.01

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Solution

The fourth proportional to 159,600.33, 220,249.98 and 87,983.01 is: 121,417.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,600.33 : 220,249.98 = 87,983.01 : x
  2. Step 2: Convert to fraction form
    159,600.33/220,249.98 = 87,983.01/x
  3. Step 3: Cross multiply
    159,600.33x = 220,249.98 × 87,983.01
  4. Step 4: Simplify right side
    159,600.33x = 19,378,256,192.84
  5. Step 5: Solve for x
    x = 19,378,256,192.84/159,600.33
  6. Step 6: Final answer
    x = 121,417.39

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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.