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Finding the Fourth Proportional to 354,121.58, 531,026.09 and 101,344.51

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Solution

The fourth proportional to 354,121.58, 531,026.09 and 101,344.51 is: 151,972.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,121.58 : 531,026.09 = 101,344.51 : x
  2. Step 2: Convert to fraction form
    354,121.58/531,026.09 = 101,344.51/x
  3. Step 3: Cross multiply
    354,121.58x = 531,026.09 × 101,344.51
  4. Step 4: Simplify right side
    354,121.58x = 53,816,578,381.54
  5. Step 5: Solve for x
    x = 53,816,578,381.54/354,121.58
  6. Step 6: Final answer
    x = 151,972.04

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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.