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Finding the Fourth Proportional to 262,040.10, 393,060.15 and 167,561.70

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Solution

The fourth proportional to 262,040.10, 393,060.15 and 167,561.70 is: 251,342.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,040.10 : 393,060.15 = 167,561.70 : x
  2. Step 2: Convert to fraction form
    262,040.10/393,060.15 = 167,561.70/x
  3. Step 3: Cross multiply
    262,040.10x = 393,060.15 × 167,561.70
  4. Step 4: Simplify right side
    262,040.10x = 65,861,826,936.26
  5. Step 5: Solve for x
    x = 65,861,826,936.26/262,040.10
  6. Step 6: Final answer
    x = 251,342.55

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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.