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Finding the Fourth Proportional to 161,781.93, 242,694.77 and 151,940.43

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Solution

The fourth proportional to 161,781.93, 242,694.77 and 151,940.43 is: 227,931.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,781.93 : 242,694.77 = 151,940.43 : x
  2. Step 2: Convert to fraction form
    161,781.93/242,694.77 = 151,940.43/x
  3. Step 3: Cross multiply
    161,781.93x = 242,694.77 × 151,940.43
  4. Step 4: Simplify right side
    161,781.93x = 36,875,146,952.85
  5. Step 5: Solve for x
    x = 36,875,146,952.85/161,781.93
  6. Step 6: Final answer
    x = 227,931.18

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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.