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Finding the Fourth Proportional to 202,910.40, 304,365.60 and 92,102.40

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Solution

The fourth proportional to 202,910.40, 304,365.60 and 92,102.40 is: 138,153.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,910.40 : 304,365.60 = 92,102.40 : x
  2. Step 2: Convert to fraction form
    202,910.40/304,365.60 = 92,102.40/x
  3. Step 3: Cross multiply
    202,910.40x = 304,365.60 × 92,102.40
  4. Step 4: Simplify right side
    202,910.40x = 28,032,802,237.44
  5. Step 5: Solve for x
    x = 28,032,802,237.44/202,910.40
  6. Step 6: Final answer
    x = 138,153.60

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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.