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Finding the Fourth Proportional to 220,493.40, 304,297.20 and 125,008.80

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Solution

The fourth proportional to 220,493.40, 304,297.20 and 125,008.80 is: 172,521.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,493.40 : 304,297.20 = 125,008.80 : x
  2. Step 2: Convert to fraction form
    220,493.40/304,297.20 = 125,008.80/x
  3. Step 3: Cross multiply
    220,493.40x = 304,297.20 × 125,008.80
  4. Step 4: Simplify right side
    220,493.40x = 38,039,827,815.36
  5. Step 5: Solve for x
    x = 38,039,827,815.36/220,493.40
  6. Step 6: Final answer
    x = 172,521.39

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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.