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Finding the Fourth Proportional to 115,859.91, 173,797.76 and 36,980.08

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Solution

The fourth proportional to 115,859.91, 173,797.76 and 36,980.08 is: 55,472.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,859.91 : 173,797.76 = 36,980.08 : x
  2. Step 2: Convert to fraction form
    115,859.91/173,797.76 = 36,980.08/x
  3. Step 3: Cross multiply
    115,859.91x = 173,797.76 × 36,980.08
  4. Step 4: Simplify right side
    115,859.91x = 6,427,055,068.62
  5. Step 5: Solve for x
    x = 6,427,055,068.62/115,859.91
  6. Step 6: Final answer
    x = 55,472.64

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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.