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Finding the Fourth Proportional to 168,167.08, 251,888.70 and 79,287.40

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Solution

The fourth proportional to 168,167.08, 251,888.70 and 79,287.40 is: 118,760.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,167.08 : 251,888.70 = 79,287.40 : x
  2. Step 2: Convert to fraction form
    168,167.08/251,888.70 = 79,287.40/x
  3. Step 3: Cross multiply
    168,167.08x = 251,888.70 × 79,287.40
  4. Step 4: Simplify right side
    168,167.08x = 19,971,600,112.38
  5. Step 5: Solve for x
    x = 19,971,600,112.38/168,167.08
  6. Step 6: Final answer
    x = 118,760.46

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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.