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Finding the Fourth Proportional to 123,226.56, 185,168.16 and 67,108.32

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Solution

The fourth proportional to 123,226.56, 185,168.16 and 67,108.32 is: 100,841.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,226.56 : 185,168.16 = 67,108.32 : x
  2. Step 2: Convert to fraction form
    123,226.56/185,168.16 = 67,108.32/x
  3. Step 3: Cross multiply
    123,226.56x = 185,168.16 × 67,108.32
  4. Step 4: Simplify right side
    123,226.56x = 12,426,324,135.09
  5. Step 5: Solve for x
    x = 12,426,324,135.09/123,226.56
  6. Step 6: Final answer
    x = 100,841.28

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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.