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Finding the Fourth Proportional to 181,721.98, 250,776.30 and 101,147.77

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Solution

The fourth proportional to 181,721.98, 250,776.30 and 101,147.77 is: 139,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,721.98 : 250,776.30 = 101,147.77 : x
  2. Step 2: Convert to fraction form
    181,721.98/250,776.30 = 101,147.77/x
  3. Step 3: Cross multiply
    181,721.98x = 250,776.30 × 101,147.77
  4. Step 4: Simplify right side
    181,721.98x = 25,365,463,513.85
  5. Step 5: Solve for x
    x = 25,365,463,513.85/181,721.98
  6. Step 6: Final answer
    x = 139,583.90

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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.