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Finding the Fourth Proportional to 157,621.64, 236,372.22 and 67,656.20

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Solution

The fourth proportional to 157,621.64, 236,372.22 and 67,656.20 is: 101,458.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,621.64 : 236,372.22 = 67,656.20 : x
  2. Step 2: Convert to fraction form
    157,621.64/236,372.22 = 67,656.20/x
  3. Step 3: Cross multiply
    157,621.64x = 236,372.22 × 67,656.20
  4. Step 4: Simplify right side
    157,621.64x = 15,992,046,190.76
  5. Step 5: Solve for x
    x = 15,992,046,190.76/157,621.64
  6. Step 6: Final answer
    x = 101,458.44

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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.