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Finding the Fourth Proportional to 209,545.88, 289,174.50 and 114,052.34

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Solution

The fourth proportional to 209,545.88, 289,174.50 and 114,052.34 is: 157,392.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,545.88 : 289,174.50 = 114,052.34 : x
  2. Step 2: Convert to fraction form
    209,545.88/289,174.50 = 114,052.34/x
  3. Step 3: Cross multiply
    209,545.88x = 289,174.50 × 114,052.34
  4. Step 4: Simplify right side
    209,545.88x = 32,981,026,947.46
  5. Step 5: Solve for x
    x = 32,981,026,947.46/209,545.88
  6. Step 6: Final answer
    x = 157,392.87

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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.