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Finding the Fourth Proportional to 220,762.66, 331,199.88 and 62,991.68

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Solution

The fourth proportional to 220,762.66, 331,199.88 and 62,991.68 is: 94,503.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,762.66 : 331,199.88 = 62,991.68 : x
  2. Step 2: Convert to fraction form
    220,762.66/331,199.88 = 62,991.68/x
  3. Step 3: Cross multiply
    220,762.66x = 331,199.88 × 62,991.68
  4. Step 4: Simplify right side
    220,762.66x = 20,862,836,857.00
  5. Step 5: Solve for x
    x = 20,862,836,857.00/220,762.66
  6. Step 6: Final answer
    x = 94,503.47

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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.