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Finding the Fourth Proportional to 181,678.77, 250,720.79 and 101,114.55

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Solution

The fourth proportional to 181,678.77, 250,720.79 and 101,114.55 is: 139,540.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,678.77 : 250,720.79 = 101,114.55 : x
  2. Step 2: Convert to fraction form
    181,678.77/250,720.79 = 101,114.55/x
  3. Step 3: Cross multiply
    181,678.77x = 250,720.79 × 101,114.55
  4. Step 4: Simplify right side
    181,678.77x = 25,351,519,350.92
  5. Step 5: Solve for x
    x = 25,351,519,350.92/181,678.77
  6. Step 6: Final answer
    x = 139,540.35

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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.