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Finding the Fourth Proportional to 348,400.72, 522,475.52 and 120,634.48

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Solution

The fourth proportional to 348,400.72, 522,475.52 and 120,634.48 is: 180,908.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,400.72 : 522,475.52 = 120,634.48 : x
  2. Step 2: Convert to fraction form
    348,400.72/522,475.52 = 120,634.48/x
  3. Step 3: Cross multiply
    348,400.72x = 522,475.52 × 120,634.48
  4. Step 4: Simplify right side
    348,400.72x = 63,028,562,667.93
  5. Step 5: Solve for x
    x = 63,028,562,667.93/348,400.72
  6. Step 6: Final answer
    x = 180,908.24

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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.