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Finding the Fourth Proportional to 75,190.50, 112,787.15 and 35,187.30

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Solution

The fourth proportional to 75,190.50, 112,787.15 and 35,187.30 is: 52,781.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,190.50 : 112,787.15 = 35,187.30 : x
  2. Step 2: Convert to fraction form
    75,190.50/112,787.15 = 35,187.30/x
  3. Step 3: Cross multiply
    75,190.50x = 112,787.15 × 35,187.30
  4. Step 4: Simplify right side
    75,190.50x = 3,968,675,107.26
  5. Step 5: Solve for x
    x = 3,968,675,107.26/75,190.50
  6. Step 6: Final answer
    x = 52,781.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.