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Finding the Fourth Proportional to 220,574.88, 304,447.41 and 125,137.44

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Solution

The fourth proportional to 220,574.88, 304,447.41 and 125,137.44 is: 172,720.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,574.88 : 304,447.41 = 125,137.44 : x
  2. Step 2: Convert to fraction form
    220,574.88/304,447.41 = 125,137.44/x
  3. Step 3: Cross multiply
    220,574.88x = 304,447.41 × 125,137.44
  4. Step 4: Simplify right side
    220,574.88x = 38,097,769,502.03
  5. Step 5: Solve for x
    x = 38,097,769,502.03/220,574.88
  6. Step 6: Final answer
    x = 172,720.35

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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.