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Finding the Fourth Proportional to 186,092.20, 279,138.30 and 167,429.80

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Solution

The fourth proportional to 186,092.20, 279,138.30 and 167,429.80 is: 251,144.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,092.20 : 279,138.30 = 167,429.80 : x
  2. Step 2: Convert to fraction form
    186,092.20/279,138.30 = 167,429.80/x
  3. Step 3: Cross multiply
    186,092.20x = 279,138.30 × 167,429.80
  4. Step 4: Simplify right side
    186,092.20x = 46,736,069,741.34
  5. Step 5: Solve for x
    x = 46,736,069,741.34/186,092.20
  6. Step 6: Final answer
    x = 251,144.70

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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.