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Finding the Fourth Proportional to 223,640.51, 335,216.76 and 109,866.61

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Solution

The fourth proportional to 223,640.51, 335,216.76 and 109,866.61 is: 164,680.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,640.51 : 335,216.76 = 109,866.61 : x
  2. Step 2: Convert to fraction form
    223,640.51/335,216.76 = 109,866.61/x
  3. Step 3: Cross multiply
    223,640.51x = 335,216.76 × 109,866.61
  4. Step 4: Simplify right side
    223,640.51x = 36,829,129,043.40
  5. Step 5: Solve for x
    x = 36,829,129,043.40/223,640.51
  6. Step 6: Final answer
    x = 164,680.05

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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.