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Finding the Fourth Proportional to 77,263.74, 106,616.79 and 43,729.74

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Solution

The fourth proportional to 77,263.74, 106,616.79 and 43,729.74 is: 60,342.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,263.74 : 106,616.79 = 43,729.74 : x
  2. Step 2: Convert to fraction form
    77,263.74/106,616.79 = 43,729.74/x
  3. Step 3: Cross multiply
    77,263.74x = 106,616.79 × 43,729.74
  4. Step 4: Simplify right side
    77,263.74x = 4,662,324,506.33
  5. Step 5: Solve for x
    x = 4,662,324,506.33/77,263.74
  6. Step 6: Final answer
    x = 60,342.98

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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.