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Finding the Fourth Proportional to 181,318.91, 271,978.29 and 56,659.91

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Solution

The fourth proportional to 181,318.91, 271,978.29 and 56,659.91 is: 84,989.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,318.91 : 271,978.29 = 56,659.91 : x
  2. Step 2: Convert to fraction form
    181,318.91/271,978.29 = 56,659.91/x
  3. Step 3: Cross multiply
    181,318.91x = 271,978.29 × 56,659.91
  4. Step 4: Simplify right side
    181,318.91x = 15,410,264,073.46
  5. Step 5: Solve for x
    x = 15,410,264,073.46/181,318.91
  6. Step 6: Final answer
    x = 84,989.84

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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.