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Finding the Fourth Proportional to 181,793.90, 272,599.59 and 105,916.97

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Solution

The fourth proportional to 181,793.90, 272,599.59 and 105,916.97 is: 158,822.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,793.90 : 272,599.59 = 105,916.97 : x
  2. Step 2: Convert to fraction form
    181,793.90/272,599.59 = 105,916.97/x
  3. Step 3: Cross multiply
    181,793.90x = 272,599.59 × 105,916.97
  4. Step 4: Simplify right side
    181,793.90x = 28,872,922,596.04
  5. Step 5: Solve for x
    x = 28,872,922,596.04/181,793.90
  6. Step 6: Final answer
    x = 158,822.28

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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.