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Finding the Fourth Proportional to 151,279.40, 226,919.10 and 77,551.40

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Solution

The fourth proportional to 151,279.40, 226,919.10 and 77,551.40 is: 116,327.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,279.40 : 226,919.10 = 77,551.40 : x
  2. Step 2: Convert to fraction form
    151,279.40/226,919.10 = 77,551.40/x
  3. Step 3: Cross multiply
    151,279.40x = 226,919.10 × 77,551.40
  4. Step 4: Simplify right side
    151,279.40x = 17,597,893,891.74
  5. Step 5: Solve for x
    x = 17,597,893,891.74/151,279.40
  6. Step 6: Final answer
    x = 116,327.10

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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.