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Finding the Fourth Proportional to 189,726.36, 261,822.54 and 104,843.46

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Solution

The fourth proportional to 189,726.36, 261,822.54 and 104,843.46 is: 144,684.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,726.36 : 261,822.54 = 104,843.46 : x
  2. Step 2: Convert to fraction form
    189,726.36/261,822.54 = 104,843.46/x
  3. Step 3: Cross multiply
    189,726.36x = 261,822.54 × 104,843.46
  4. Step 4: Simplify right side
    189,726.36x = 27,450,380,999.59
  5. Step 5: Solve for x
    x = 27,450,380,999.59/189,726.36
  6. Step 6: Final answer
    x = 144,684.06

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1.5x scale

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.