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Finding the Fourth Proportional to 220,365.72, 304,103.52 and 124,890.48

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Solution

The fourth proportional to 220,365.72, 304,103.52 and 124,890.48 is: 172,348.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,365.72 : 304,103.52 = 124,890.48 : x
  2. Step 2: Convert to fraction form
    220,365.72/304,103.52 = 124,890.48/x
  3. Step 3: Cross multiply
    220,365.72x = 304,103.52 × 124,890.48
  4. Step 4: Simplify right side
    220,365.72x = 37,979,634,582.49
  5. Step 5: Solve for x
    x = 37,979,634,582.49/220,365.72
  6. Step 6: Final answer
    x = 172,348.20

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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.