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Finding the Fourth Proportional to 85,797.43, 118,400.11 and 48,071.59

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Solution

The fourth proportional to 85,797.43, 118,400.11 and 48,071.59 is: 66,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,797.43 : 118,400.11 = 48,071.59 : x
  2. Step 2: Convert to fraction form
    85,797.43/118,400.11 = 48,071.59/x
  3. Step 3: Cross multiply
    85,797.43x = 118,400.11 × 48,071.59
  4. Step 4: Simplify right side
    85,797.43x = 5,691,681,543.87
  5. Step 5: Solve for x
    x = 5,691,681,543.87/85,797.43
  6. Step 6: Final answer
    x = 66,338.60

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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.