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Finding the Fourth Proportional to 181,797.71, 272,605.31 and 105,920.81

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Solution

The fourth proportional to 181,797.71, 272,605.31 and 105,920.81 is: 158,828.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,797.71 : 272,605.31 = 105,920.81 : x
  2. Step 2: Convert to fraction form
    181,797.71/272,605.31 = 105,920.81/x
  3. Step 3: Cross multiply
    181,797.71x = 272,605.31 × 105,920.81
  4. Step 4: Simplify right side
    181,797.71x = 28,874,573,352.87
  5. Step 5: Solve for x
    x = 28,874,573,352.87/181,797.71
  6. Step 6: Final answer
    x = 158,828.04

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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.