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Finding the Fourth Proportional to 172,433.44, 237,990.90 and 107,932.60

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Solution

The fourth proportional to 172,433.44, 237,990.90 and 107,932.60 is: 148,967.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,433.44 : 237,990.90 = 107,932.60 : x
  2. Step 2: Convert to fraction form
    172,433.44/237,990.90 = 107,932.60/x
  3. Step 3: Cross multiply
    172,433.44x = 237,990.90 × 107,932.60
  4. Step 4: Simplify right side
    172,433.44x = 25,686,976,613.34
  5. Step 5: Solve for x
    x = 25,686,976,613.34/172,433.44
  6. Step 6: Final answer
    x = 148,967.49

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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.