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Finding the Fourth Proportional to 112,551.39, 168,827.37 and 45,991.52

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Solution

The fourth proportional to 112,551.39, 168,827.37 and 45,991.52 is: 68,987.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,551.39 : 168,827.37 = 45,991.52 : x
  2. Step 2: Convert to fraction form
    112,551.39/168,827.37 = 45,991.52/x
  3. Step 3: Cross multiply
    112,551.39x = 168,827.37 × 45,991.52
  4. Step 4: Simplify right side
    112,551.39x = 7,764,626,519.77
  5. Step 5: Solve for x
    x = 7,764,626,519.77/112,551.39
  6. Step 6: Final answer
    x = 68,987.39

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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.