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Finding the Fourth Proportional to 220,712.09, 331,071.15 and 62,940.52

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Solution

The fourth proportional to 220,712.09, 331,071.15 and 62,940.52 is: 94,411.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,712.09 : 331,071.15 = 62,940.52 : x
  2. Step 2: Convert to fraction form
    220,712.09/331,071.15 = 62,940.52/x
  3. Step 3: Cross multiply
    220,712.09x = 331,071.15 × 62,940.52
  4. Step 4: Simplify right side
    220,712.09x = 20,837,788,682.64
  5. Step 5: Solve for x
    x = 20,837,788,682.64/220,712.09
  6. Step 6: Final answer
    x = 94,411.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.