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Finding the Fourth Proportional to 85,597.89, 118,122.87 and 47,356.44

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Solution

The fourth proportional to 85,597.89, 118,122.87 and 47,356.44 is: 65,350.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,597.89 : 118,122.87 = 47,356.44 : x
  2. Step 2: Convert to fraction form
    85,597.89/118,122.87 = 47,356.44/x
  3. Step 3: Cross multiply
    85,597.89x = 118,122.87 × 47,356.44
  4. Step 4: Simplify right side
    85,597.89x = 5,593,878,605.78
  5. Step 5: Solve for x
    x = 5,593,878,605.78/85,597.89
  6. Step 6: Final answer
    x = 65,350.66

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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.