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Finding the Fourth Proportional to 85,998.60, 118,671.48 and 48,265.56

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Solution

The fourth proportional to 85,998.60, 118,671.48 and 48,265.56 is: 66,602.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,998.60 : 118,671.48 = 48,265.56 : x
  2. Step 2: Convert to fraction form
    85,998.60/118,671.48 = 48,265.56/x
  3. Step 3: Cross multiply
    85,998.60x = 118,671.48 × 48,265.56
  4. Step 4: Simplify right side
    85,998.60x = 5,727,745,438.23
  5. Step 5: Solve for x
    x = 5,727,745,438.23/85,998.60
  6. Step 6: Final answer
    x = 66,602.78

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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.