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Finding the Fourth Proportional to 226,651.80, 312,788.07 and 124,685.22

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Solution

The fourth proportional to 226,651.80, 312,788.07 and 124,685.22 is: 172,070.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,651.80 : 312,788.07 = 124,685.22 : x
  2. Step 2: Convert to fraction form
    226,651.80/312,788.07 = 124,685.22/x
  3. Step 3: Cross multiply
    226,651.80x = 312,788.07 × 124,685.22
  4. Step 4: Simplify right side
    226,651.80x = 39,000,049,321.33
  5. Step 5: Solve for x
    x = 39,000,049,321.33/226,651.80
  6. Step 6: Final answer
    x = 172,070.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.