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Finding the Fourth Proportional to 100,853.20, 151,279.80 and 92,558.80

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Solution

The fourth proportional to 100,853.20, 151,279.80 and 92,558.80 is: 138,838.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,853.20 : 151,279.80 = 92,558.80 : x
  2. Step 2: Convert to fraction form
    100,853.20/151,279.80 = 92,558.80/x
  3. Step 3: Cross multiply
    100,853.20x = 151,279.80 × 92,558.80
  4. Step 4: Simplify right side
    100,853.20x = 14,002,276,752.24
  5. Step 5: Solve for x
    x = 14,002,276,752.24/100,853.20
  6. Step 6: Final answer
    x = 138,838.20

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1.5x scale

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.