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Finding the Fourth Proportional to 188,447.10, 260,079.12 and 111,966.83

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Solution

The fourth proportional to 188,447.10, 260,079.12 and 111,966.83 is: 154,527.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,447.10 : 260,079.12 = 111,966.83 : x
  2. Step 2: Convert to fraction form
    188,447.10/260,079.12 = 111,966.83/x
  3. Step 3: Cross multiply
    188,447.10x = 260,079.12 × 111,966.83
  4. Step 4: Simplify right side
    188,447.10x = 29,120,234,615.59
  5. Step 5: Solve for x
    x = 29,120,234,615.59/188,447.10
  6. Step 6: Final answer
    x = 154,527.37

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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.