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Finding the Fourth Proportional to 175,040.70, 262,561.05 and 81,728.70

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Solution

The fourth proportional to 175,040.70, 262,561.05 and 81,728.70 is: 122,593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,040.70 : 262,561.05 = 81,728.70 : x
  2. Step 2: Convert to fraction form
    175,040.70/262,561.05 = 81,728.70/x
  3. Step 3: Cross multiply
    175,040.70x = 262,561.05 × 81,728.70
  4. Step 4: Simplify right side
    175,040.70x = 21,458,773,287.14
  5. Step 5: Solve for x
    x = 21,458,773,287.14/175,040.70
  6. Step 6: Final answer
    x = 122,593.05

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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.