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Finding the Fourth Proportional to 171,857.66, 237,109.92 and 99,251.24

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Solution

The fourth proportional to 171,857.66, 237,109.92 and 99,251.24 is: 136,935.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,857.66 : 237,109.92 = 99,251.24 : x
  2. Step 2: Convert to fraction form
    171,857.66/237,109.92 = 99,251.24/x
  3. Step 3: Cross multiply
    171,857.66x = 237,109.92 × 99,251.24
  4. Step 4: Simplify right side
    171,857.66x = 23,533,453,796.88
  5. Step 5: Solve for x
    x = 23,533,453,796.88/171,857.66
  6. Step 6: Final answer
    x = 136,935.73

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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.