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Finding the Fourth Proportional to 185,161.77, 255,523.01 and 100,279.17

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Solution

The fourth proportional to 185,161.77, 255,523.01 and 100,279.17 is: 138,385.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,161.77 : 255,523.01 = 100,279.17 : x
  2. Step 2: Convert to fraction form
    185,161.77/255,523.01 = 100,279.17/x
  3. Step 3: Cross multiply
    185,161.77x = 255,523.01 × 100,279.17
  4. Step 4: Simplify right side
    185,161.77x = 25,623,634,857.31
  5. Step 5: Solve for x
    x = 25,623,634,857.31/185,161.77
  6. Step 6: Final answer
    x = 138,385.13

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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.