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Finding the Fourth Proportional to 221,356.89, 332,035.64 and 94,915.49

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Solution

The fourth proportional to 221,356.89, 332,035.64 and 94,915.49 is: 142,373.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,356.89 : 332,035.64 = 94,915.49 : x
  2. Step 2: Convert to fraction form
    221,356.89/332,035.64 = 94,915.49/x
  3. Step 3: Cross multiply
    221,356.89x = 332,035.64 × 94,915.49
  4. Step 4: Simplify right side
    221,356.89x = 31,515,323,333.31
  5. Step 5: Solve for x
    x = 31,515,323,333.31/221,356.89
  6. Step 6: Final answer
    x = 142,373.36

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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.