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Finding the Fourth Proportional to 85,532.89, 118,043.78 and 47,301.39

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Solution

The fourth proportional to 85,532.89, 118,043.78 and 47,301.39 is: 65,280.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,532.89 : 118,043.78 = 47,301.39 : x
  2. Step 2: Convert to fraction form
    85,532.89/118,043.78 = 47,301.39/x
  3. Step 3: Cross multiply
    85,532.89x = 118,043.78 × 47,301.39
  4. Step 4: Simplify right side
    85,532.89x = 5,583,635,236.42
  5. Step 5: Solve for x
    x = 5,583,635,236.42/85,532.89
  6. Step 6: Final answer
    x = 65,280.57

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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.