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Finding the Fourth Proportional to 243,700.40, 336,391.24 and 167,471.90

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Solution

The fourth proportional to 243,700.40, 336,391.24 and 167,471.90 is: 231,169.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,700.40 : 336,391.24 = 167,471.90 : x
  2. Step 2: Convert to fraction form
    243,700.40/336,391.24 = 167,471.90/x
  3. Step 3: Cross multiply
    243,700.40x = 336,391.24 × 167,471.90
  4. Step 4: Simplify right side
    243,700.40x = 56,336,080,106.16
  5. Step 5: Solve for x
    x = 56,336,080,106.16/243,700.40
  6. Step 6: Final answer
    x = 231,169.42

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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.