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Finding the Fourth Proportional to 209,404.80, 313,588.80 and 167,932.80

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Solution

The fourth proportional to 209,404.80, 313,588.80 and 167,932.80 is: 251,483.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,404.80 : 313,588.80 = 167,932.80 : x
  2. Step 2: Convert to fraction form
    209,404.80/313,588.80 = 167,932.80/x
  3. Step 3: Cross multiply
    209,404.80x = 313,588.80 × 167,932.80
  4. Step 4: Simplify right side
    209,404.80x = 52,661,845,232.64
  5. Step 5: Solve for x
    x = 52,661,845,232.64/209,404.80
  6. Step 6: Final answer
    x = 251,483.47

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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.