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Finding the Fourth Proportional to 221,243.74, 331,865.80 and 94,801.98

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Solution

The fourth proportional to 221,243.74, 331,865.80 and 94,801.98 is: 142,203.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,243.74 : 331,865.80 = 94,801.98 : x
  2. Step 2: Convert to fraction form
    221,243.74/331,865.80 = 94,801.98/x
  3. Step 3: Cross multiply
    221,243.74x = 331,865.80 × 94,801.98
  4. Step 4: Simplify right side
    221,243.74x = 31,461,534,934.28
  5. Step 5: Solve for x
    x = 31,461,534,934.28/221,243.74
  6. Step 6: Final answer
    x = 142,203.05

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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.