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Finding the Fourth Proportional to 348,390.57, 522,637.80 and 123,732.14

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Solution

The fourth proportional to 348,390.57, 522,637.80 and 123,732.14 is: 185,616.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,390.57 : 522,637.80 = 123,732.14 : x
  2. Step 2: Convert to fraction form
    348,390.57/522,637.80 = 123,732.14/x
  3. Step 3: Cross multiply
    348,390.57x = 522,637.80 × 123,732.14
  4. Step 4: Simplify right side
    348,390.57x = 64,667,093,997.54
  5. Step 5: Solve for x
    x = 64,667,093,997.54/348,390.57
  6. Step 6: Final answer
    x = 185,616.66

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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.