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Finding the Fourth Proportional to 220,694.16, 330,898.80 and 94,416.78

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Solution

The fourth proportional to 220,694.16, 330,898.80 and 94,416.78 is: 141,564.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,694.16 : 330,898.80 = 94,416.78 : x
  2. Step 2: Convert to fraction form
    220,694.16/330,898.80 = 94,416.78/x
  3. Step 3: Cross multiply
    220,694.16x = 330,898.80 × 94,416.78
  4. Step 4: Simplify right side
    220,694.16x = 31,242,399,201.86
  5. Step 5: Solve for x
    x = 31,242,399,201.86/220,694.16
  6. Step 6: Final answer
    x = 141,564.23

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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.