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Finding the Fourth Proportional to 102,866.48, 154,233 and 67,699.28

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Solution

The fourth proportional to 102,866.48, 154,233 and 67,699.28 is: 101,505.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,866.48 : 154,233 = 67,699.28 : x
  2. Step 2: Convert to fraction form
    102,866.48/154,233 = 67,699.28/x
  3. Step 3: Cross multiply
    102,866.48x = 154,233 × 67,699.28
  4. Step 4: Simplify right side
    102,866.48x = 10,441,463,052.24
  5. Step 5: Solve for x
    x = 10,441,463,052.24/102,866.48
  6. Step 6: Final answer
    x = 101,505.01

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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.