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Finding the Fourth Proportional to 159,210.04, 219,713.82 and 87,592

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Solution

The fourth proportional to 159,210.04, 219,713.82 and 87,592 is: 120,879.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,210.04 : 219,713.82 = 87,592 : x
  2. Step 2: Convert to fraction form
    159,210.04/219,713.82 = 87,592/x
  3. Step 3: Cross multiply
    159,210.04x = 219,713.82 × 87,592
  4. Step 4: Simplify right side
    159,210.04x = 19,245,172,921.44
  5. Step 5: Solve for x
    x = 19,245,172,921.44/159,210.04
  6. Step 6: Final answer
    x = 120,879.14

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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.