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Finding the Fourth Proportional to 85,960.20, 118,619.13 and 47,716.74

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Solution

The fourth proportional to 85,960.20, 118,619.13 and 47,716.74 is: 65,845.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,960.20 : 118,619.13 = 47,716.74 : x
  2. Step 2: Convert to fraction form
    85,960.20/118,619.13 = 47,716.74/x
  3. Step 3: Cross multiply
    85,960.20x = 118,619.13 × 47,716.74
  4. Step 4: Simplify right side
    85,960.20x = 5,660,118,185.24
  5. Step 5: Solve for x
    x = 5,660,118,185.24/85,960.20
  6. Step 6: Final answer
    x = 65,845.80

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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.