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Finding the Fourth Proportional to 220,818.15, 304,730.51 and 125,326.44

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Solution

The fourth proportional to 220,818.15, 304,730.51 and 125,326.44 is: 172,951.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,818.15 : 304,730.51 = 125,326.44 : x
  2. Step 2: Convert to fraction form
    220,818.15/304,730.51 = 125,326.44/x
  3. Step 3: Cross multiply
    220,818.15x = 304,730.51 × 125,326.44
  4. Step 4: Simplify right side
    220,818.15x = 38,190,789,351.05
  5. Step 5: Solve for x
    x = 38,190,789,351.05/220,818.15
  6. Step 6: Final answer
    x = 172,951.31

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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.