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Finding the Fourth Proportional to 159,174.35, 219,656.00 and 87,554.39

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Solution

The fourth proportional to 159,174.35, 219,656.00 and 87,554.39 is: 120,822.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,174.35 : 219,656.00 = 87,554.39 : x
  2. Step 2: Convert to fraction form
    159,174.35/219,656.00 = 87,554.39/x
  3. Step 3: Cross multiply
    159,174.35x = 219,656.00 × 87,554.39
  4. Step 4: Simplify right side
    159,174.35x = 19,231,846,210.45
  5. Step 5: Solve for x
    x = 19,231,846,210.45/159,174.35
  6. Step 6: Final answer
    x = 120,822.52

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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.