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Finding the Fourth Proportional to 136,906.90, 204,957.15 and 102,001.30

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Solution

The fourth proportional to 136,906.90, 204,957.15 and 102,001.30 is: 152,701.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,906.90 : 204,957.15 = 102,001.30 : x
  2. Step 2: Convert to fraction form
    136,906.90/204,957.15 = 102,001.30/x
  3. Step 3: Cross multiply
    136,906.90x = 204,957.15 × 102,001.30
  4. Step 4: Simplify right side
    136,906.90x = 20,905,895,744.30
  5. Step 5: Solve for x
    x = 20,905,895,744.30/136,906.90
  6. Step 6: Final answer
    x = 152,701.55

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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.