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Finding the Fourth Proportional to 156,443.90, 215,891.26 and 88,474.22

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Solution

The fourth proportional to 156,443.90, 215,891.26 and 88,474.22 is: 122,093.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,443.90 : 215,891.26 = 88,474.22 : x
  2. Step 2: Convert to fraction form
    156,443.90/215,891.26 = 88,474.22/x
  3. Step 3: Cross multiply
    156,443.90x = 215,891.26 × 88,474.22
  4. Step 4: Simplify right side
    156,443.90x = 19,100,810,833.32
  5. Step 5: Solve for x
    x = 19,100,810,833.32/156,443.90
  6. Step 6: Final answer
    x = 122,093.68

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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.