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Finding the Fourth Proportional to 163,053.58, 225,046.21 and 105,763.90

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Solution

The fourth proportional to 163,053.58, 225,046.21 and 105,763.90 is: 145,975.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,053.58 : 225,046.21 = 105,763.90 : x
  2. Step 2: Convert to fraction form
    163,053.58/225,046.21 = 105,763.90/x
  3. Step 3: Cross multiply
    163,053.58x = 225,046.21 × 105,763.90
  4. Step 4: Simplify right side
    163,053.58x = 23,801,764,022.79
  5. Step 5: Solve for x
    x = 23,801,764,022.79/163,053.58
  6. Step 6: Final answer
    x = 145,975.11

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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.