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Finding the Fourth Proportional to 103,220.61, 154,793.79 and 35,734.32

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Solution

The fourth proportional to 103,220.61, 154,793.79 and 35,734.32 is: 53,588.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,220.61 : 154,793.79 = 35,734.32 : x
  2. Step 2: Convert to fraction form
    103,220.61/154,793.79 = 35,734.32/x
  3. Step 3: Cross multiply
    103,220.61x = 154,793.79 × 35,734.32
  4. Step 4: Simplify right side
    103,220.61x = 5,531,450,825.87
  5. Step 5: Solve for x
    x = 5,531,450,825.87/103,220.61
  6. Step 6: Final answer
    x = 53,588.63

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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.