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Finding the Fourth Proportional to 412,625.60, 618,871.96 and 113,036.12

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Solution

The fourth proportional to 412,625.60, 618,871.96 and 113,036.12 is: 169,535.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,625.60 : 618,871.96 = 113,036.12 : x
  2. Step 2: Convert to fraction form
    412,625.60/618,871.96 = 113,036.12/x
  3. Step 3: Cross multiply
    412,625.60x = 618,871.96 × 113,036.12
  4. Step 4: Simplify right side
    412,625.60x = 69,954,885,135.20
  5. Step 5: Solve for x
    x = 69,954,885,135.20/412,625.60
  6. Step 6: Final answer
    x = 169,535.98

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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.