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Finding the Fourth Proportional to 181,440.56, 250,395.18 and 99,775.51

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Solution

The fourth proportional to 181,440.56, 250,395.18 and 99,775.51 is: 137,694.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,440.56 : 250,395.18 = 99,775.51 : x
  2. Step 2: Convert to fraction form
    181,440.56/250,395.18 = 99,775.51/x
  3. Step 3: Cross multiply
    181,440.56x = 250,395.18 × 99,775.51
  4. Step 4: Simplify right side
    181,440.56x = 24,983,306,786.04
  5. Step 5: Solve for x
    x = 24,983,306,786.04/181,440.56
  6. Step 6: Final answer
    x = 137,694.17

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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.