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Finding the Fourth Proportional to 172,040.40, 257,542.20 and 151,304.40

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Solution

The fourth proportional to 172,040.40, 257,542.20 and 151,304.40 is: 226,500.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,040.40 : 257,542.20 = 151,304.40 : x
  2. Step 2: Convert to fraction form
    172,040.40/257,542.20 = 151,304.40/x
  3. Step 3: Cross multiply
    172,040.40x = 257,542.20 × 151,304.40
  4. Step 4: Simplify right side
    172,040.40x = 38,967,268,045.68
  5. Step 5: Solve for x
    x = 38,967,268,045.68/172,040.40
  6. Step 6: Final answer
    x = 226,500.68

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1.5x scale

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.