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Finding the Fourth Proportional to 112,665.80, 168,998.70 and 29,568.20

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Solution

The fourth proportional to 112,665.80, 168,998.70 and 29,568.20 is: 44,352.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,665.80 : 168,998.70 = 29,568.20 : x
  2. Step 2: Convert to fraction form
    112,665.80/168,998.70 = 29,568.20/x
  3. Step 3: Cross multiply
    112,665.80x = 168,998.70 × 29,568.20
  4. Step 4: Simplify right side
    112,665.80x = 4,996,987,361.34
  5. Step 5: Solve for x
    x = 4,996,987,361.34/112,665.80
  6. Step 6: Final answer
    x = 44,352.30

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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.