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Finding the Fourth Proportional to 220,334.80, 304,117.32 and 124,898.44

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Solution

The fourth proportional to 220,334.80, 304,117.32 and 124,898.44 is: 172,391.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,334.80 : 304,117.32 = 124,898.44 : x
  2. Step 2: Convert to fraction form
    220,334.80/304,117.32 = 124,898.44/x
  3. Step 3: Cross multiply
    220,334.80x = 304,117.32 × 124,898.44
  4. Step 4: Simplify right side
    220,334.80x = 37,983,778,844.98
  5. Step 5: Solve for x
    x = 37,983,778,844.98/220,334.80
  6. Step 6: Final answer
    x = 172,391.19

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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.