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Finding the Fourth Proportional to 95,519.70, 143,279.55 and 83,855.70

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Solution

The fourth proportional to 95,519.70, 143,279.55 and 83,855.70 is: 125,783.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,519.70 : 143,279.55 = 83,855.70 : x
  2. Step 2: Convert to fraction form
    95,519.70/143,279.55 = 83,855.70/x
  3. Step 3: Cross multiply
    95,519.70x = 143,279.55 × 83,855.70
  4. Step 4: Simplify right side
    95,519.70x = 12,014,806,960.94
  5. Step 5: Solve for x
    x = 12,014,806,960.94/95,519.70
  6. Step 6: Final answer
    x = 125,783.55

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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.