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Finding the Fourth Proportional to 351,907.54, 527,892.39 and 99,190.17

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Solution

The fourth proportional to 351,907.54, 527,892.39 and 99,190.17 is: 148,794.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,907.54 : 527,892.39 = 99,190.17 : x
  2. Step 2: Convert to fraction form
    351,907.54/527,892.39 = 99,190.17/x
  3. Step 3: Cross multiply
    351,907.54x = 527,892.39 × 99,190.17
  4. Step 4: Simplify right side
    351,907.54x = 52,361,735,905.81
  5. Step 5: Solve for x
    x = 52,361,735,905.81/351,907.54
  6. Step 6: Final answer
    x = 148,794.02

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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.