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Finding the Fourth Proportional to 220,838.43, 331,250.61 and 63,066.78

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Solution

The fourth proportional to 220,838.43, 331,250.61 and 63,066.78 is: 94,598.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,838.43 : 331,250.61 = 63,066.78 : x
  2. Step 2: Convert to fraction form
    220,838.43/331,250.61 = 63,066.78/x
  3. Step 3: Cross multiply
    220,838.43x = 331,250.61 × 63,066.78
  4. Step 4: Simplify right side
    220,838.43x = 20,890,909,345.74
  5. Step 5: Solve for x
    x = 20,890,909,345.74/220,838.43
  6. Step 6: Final answer
    x = 94,598.16

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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.