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Finding the Fourth Proportional to 181,980.77, 251,132.79 and 101,407.54

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Solution

The fourth proportional to 181,980.77, 251,132.79 and 101,407.54 is: 139,942.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,980.77 : 251,132.79 = 101,407.54 : x
  2. Step 2: Convert to fraction form
    181,980.77/251,132.79 = 101,407.54/x
  3. Step 3: Cross multiply
    181,980.77x = 251,132.79 × 101,407.54
  4. Step 4: Simplify right side
    181,980.77x = 25,466,757,940.20
  5. Step 5: Solve for x
    x = 25,466,757,940.20/181,980.77
  6. Step 6: Final answer
    x = 139,942.03

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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.