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Finding the Fourth Proportional to 162,206.88, 223,843.28 and 90,588.16

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Solution

The fourth proportional to 162,206.88, 223,843.28 and 90,588.16 is: 125,010.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,206.88 : 223,843.28 = 90,588.16 : x
  2. Step 2: Convert to fraction form
    162,206.88/223,843.28 = 90,588.16/x
  3. Step 3: Cross multiply
    162,206.88x = 223,843.28 × 90,588.16
  4. Step 4: Simplify right side
    162,206.88x = 20,277,550,863.56
  5. Step 5: Solve for x
    x = 20,277,550,863.56/162,206.88
  6. Step 6: Final answer
    x = 125,010.42

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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.