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Finding the Fourth Proportional to 163,843.30, 245,764.95 and 111,355.30

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Solution

The fourth proportional to 163,843.30, 245,764.95 and 111,355.30 is: 167,032.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,843.30 : 245,764.95 = 111,355.30 : x
  2. Step 2: Convert to fraction form
    163,843.30/245,764.95 = 111,355.30/x
  3. Step 3: Cross multiply
    163,843.30x = 245,764.95 × 111,355.30
  4. Step 4: Simplify right side
    163,843.30x = 27,367,229,736.74
  5. Step 5: Solve for x
    x = 27,367,229,736.74/163,843.30
  6. Step 6: Final answer
    x = 167,032.95

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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.