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Finding the Fourth Proportional to 181,619.84, 250,493.36 and 117,978.14

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Solution

The fourth proportional to 181,619.84, 250,493.36 and 117,978.14 is: 162,717.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,619.84 : 250,493.36 = 117,978.14 : x
  2. Step 2: Convert to fraction form
    181,619.84/250,493.36 = 117,978.14/x
  3. Step 3: Cross multiply
    181,619.84x = 250,493.36 × 117,978.14
  4. Step 4: Simplify right side
    181,619.84x = 29,552,740,695.15
  5. Step 5: Solve for x
    x = 29,552,740,695.15/181,619.84
  6. Step 6: Final answer
    x = 162,717.58

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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.