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Finding the Fourth Proportional to 159,843.66, 239,810.45 and 69,894.28

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Solution

The fourth proportional to 159,843.66, 239,810.45 and 69,894.28 is: 104,861.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,843.66 : 239,810.45 = 69,894.28 : x
  2. Step 2: Convert to fraction form
    159,843.66/239,810.45 = 69,894.28/x
  3. Step 3: Cross multiply
    159,843.66x = 239,810.45 × 69,894.28
  4. Step 4: Simplify right side
    159,843.66x = 16,761,377,790.23
  5. Step 5: Solve for x
    x = 16,761,377,790.23/159,843.66
  6. Step 6: Final answer
    x = 104,861.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.