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Finding the Fourth Proportional to 167,788.40, 251,099.40 and 115,300.40

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Solution

The fourth proportional to 167,788.40, 251,099.40 and 115,300.40 is: 172,549.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,788.40 : 251,099.40 = 115,300.40 : x
  2. Step 2: Convert to fraction form
    167,788.40/251,099.40 = 115,300.40/x
  3. Step 3: Cross multiply
    167,788.40x = 251,099.40 × 115,300.40
  4. Step 4: Simplify right side
    167,788.40x = 28,951,861,259.76
  5. Step 5: Solve for x
    x = 28,951,861,259.76/167,788.40
  6. Step 6: Final answer
    x = 172,549.84

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1.5x scale

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.