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Finding the Fourth Proportional to 102,608.40, 153,912.60 and 36,026.40

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Solution

The fourth proportional to 102,608.40, 153,912.60 and 36,026.40 is: 54,039.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,608.40 : 153,912.60 = 36,026.40 : x
  2. Step 2: Convert to fraction form
    102,608.40/153,912.60 = 36,026.40/x
  3. Step 3: Cross multiply
    102,608.40x = 153,912.60 × 36,026.40
  4. Step 4: Simplify right side
    102,608.40x = 5,544,916,892.64
  5. Step 5: Solve for x
    x = 5,544,916,892.64/102,608.40
  6. Step 6: Final answer
    x = 54,039.60

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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.