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Finding the Fourth Proportional to 85,894.50, 118,534.41 and 48,168.75

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Solution

The fourth proportional to 85,894.50, 118,534.41 and 48,168.75 is: 66,472.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,894.50 : 118,534.41 = 48,168.75 : x
  2. Step 2: Convert to fraction form
    85,894.50/118,534.41 = 48,168.75/x
  3. Step 3: Cross multiply
    85,894.50x = 118,534.41 × 48,168.75
  4. Step 4: Simplify right side
    85,894.50x = 5,709,654,361.69
  5. Step 5: Solve for x
    x = 5,709,654,361.69/85,894.50
  6. Step 6: Final answer
    x = 66,472.88

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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.