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Finding the Fourth Proportional to 115,282.83, 172,919.93 and 36,401.79

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Solution

The fourth proportional to 115,282.83, 172,919.93 and 36,401.79 is: 54,601.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,282.83 : 172,919.93 = 36,401.79 : x
  2. Step 2: Convert to fraction form
    115,282.83/172,919.93 = 36,401.79/x
  3. Step 3: Cross multiply
    115,282.83x = 172,919.93 × 36,401.79
  4. Step 4: Simplify right side
    115,282.83x = 6,294,594,796.67
  5. Step 5: Solve for x
    x = 6,294,594,796.67/115,282.83
  6. Step 6: Final answer
    x = 54,601.32

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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.