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Finding the Fourth Proportional to 91,279.26, 125,963.99 and 50,993.60

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Solution

The fourth proportional to 91,279.26, 125,963.99 and 50,993.60 is: 70,370.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,279.26 : 125,963.99 = 50,993.60 : x
  2. Step 2: Convert to fraction form
    91,279.26/125,963.99 = 50,993.60/x
  3. Step 3: Cross multiply
    91,279.26x = 125,963.99 × 50,993.60
  4. Step 4: Simplify right side
    91,279.26x = 6,423,357,320.46
  5. Step 5: Solve for x
    x = 6,423,357,320.46/91,279.26
  6. Step 6: Final answer
    x = 70,370.39

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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.