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Finding the Fourth Proportional to 173,199.21, 239,012.64 and 96,719.64

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Solution

The fourth proportional to 173,199.21, 239,012.64 and 96,719.64 is: 133,471.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,199.21 : 239,012.64 = 96,719.64 : x
  2. Step 2: Convert to fraction form
    173,199.21/239,012.64 = 96,719.64/x
  3. Step 3: Cross multiply
    173,199.21x = 239,012.64 × 96,719.64
  4. Step 4: Simplify right side
    173,199.21x = 23,117,216,496.25
  5. Step 5: Solve for x
    x = 23,117,216,496.25/173,199.21
  6. Step 6: Final answer
    x = 133,471.84

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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.