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Finding the Fourth Proportional to 220,307.04, 303,986.52 and 124,794

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Solution

The fourth proportional to 220,307.04, 303,986.52 and 124,794 is: 172,194.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,307.04 : 303,986.52 = 124,794 : x
  2. Step 2: Convert to fraction form
    220,307.04/303,986.52 = 124,794/x
  3. Step 3: Cross multiply
    220,307.04x = 303,986.52 × 124,794
  4. Step 4: Simplify right side
    220,307.04x = 37,935,693,776.88
  5. Step 5: Solve for x
    x = 37,935,693,776.88/220,307.04
  6. Step 6: Final answer
    x = 172,194.65

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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.