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Finding the Fourth Proportional to 354,171.21, 531,100.07 and 101,394.10

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Solution

The fourth proportional to 354,171.21, 531,100.07 and 101,394.10 is: 152,046.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,171.21 : 531,100.07 = 101,394.10 : x
  2. Step 2: Convert to fraction form
    354,171.21/531,100.07 = 101,394.10/x
  3. Step 3: Cross multiply
    354,171.21x = 531,100.07 × 101,394.10
  4. Step 4: Simplify right side
    354,171.21x = 53,850,413,607.59
  5. Step 5: Solve for x
    x = 53,850,413,607.59/354,171.21
  6. Step 6: Final answer
    x = 152,046.28

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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.