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Finding the Fourth Proportional to 167,892.18, 251,838 and 115,141.74

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Solution

The fourth proportional to 167,892.18, 251,838 and 115,141.74 is: 172,712.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,892.18 : 251,838 = 115,141.74 : x
  2. Step 2: Convert to fraction form
    167,892.18/251,838 = 115,141.74/x
  3. Step 3: Cross multiply
    167,892.18x = 251,838 × 115,141.74
  4. Step 4: Simplify right side
    167,892.18x = 28,997,065,518.12
  5. Step 5: Solve for x
    x = 28,997,065,518.12/167,892.18
  6. Step 6: Final answer
    x = 172,712.42

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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.