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Finding the Fourth Proportional to 117,081.80, 175,622.70 and 28,335.32

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Solution

The fourth proportional to 117,081.80, 175,622.70 and 28,335.32 is: 42,502.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,081.80 : 175,622.70 = 28,335.32 : x
  2. Step 2: Convert to fraction form
    117,081.80/175,622.70 = 28,335.32/x
  3. Step 3: Cross multiply
    117,081.80x = 175,622.70 × 28,335.32
  4. Step 4: Simplify right side
    117,081.80x = 4,976,324,525.65
  5. Step 5: Solve for x
    x = 4,976,324,525.65/117,081.80
  6. Step 6: Final answer
    x = 42,502.97

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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.