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Finding the Fourth Proportional to 112,166.44, 154,751.40 and 63,763.48

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Solution

The fourth proportional to 112,166.44, 154,751.40 and 63,763.48 is: 87,971.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,166.44 : 154,751.40 = 63,763.48 : x
  2. Step 2: Convert to fraction form
    112,166.44/154,751.40 = 63,763.48/x
  3. Step 3: Cross multiply
    112,166.44x = 154,751.40 × 63,763.48
  4. Step 4: Simplify right side
    112,166.44x = 9,867,487,798.87
  5. Step 5: Solve for x
    x = 9,867,487,798.87/112,166.44
  6. Step 6: Final answer
    x = 87,971.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.