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Finding the Fourth Proportional to 168,436.19, 252,620.11 and 61,783.84

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Solution

The fourth proportional to 168,436.19, 252,620.11 and 61,783.84 is: 92,663.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,436.19 : 252,620.11 = 61,783.84 : x
  2. Step 2: Convert to fraction form
    168,436.19/252,620.11 = 61,783.84/x
  3. Step 3: Cross multiply
    168,436.19x = 252,620.11 × 61,783.84
  4. Step 4: Simplify right side
    168,436.19x = 15,607,839,671.01
  5. Step 5: Solve for x
    x = 15,607,839,671.01/168,436.19
  6. Step 6: Final answer
    x = 92,663.22

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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.