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Finding the Fourth Proportional to 159,175.22, 219,658.22 and 87,553.66

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Solution

The fourth proportional to 159,175.22, 219,658.22 and 87,553.66 is: 120,822.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,175.22 : 219,658.22 = 87,553.66 : x
  2. Step 2: Convert to fraction form
    159,175.22/219,658.22 = 87,553.66/x
  3. Step 3: Cross multiply
    159,175.22x = 219,658.22 × 87,553.66
  4. Step 4: Simplify right side
    159,175.22x = 19,231,881,110.09
  5. Step 5: Solve for x
    x = 19,231,881,110.09/159,175.22
  6. Step 6: Final answer
    x = 120,822.08

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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.