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Finding the Fourth Proportional to 163,590.60, 225,687.96 and 103,141.92

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Solution

The fourth proportional to 163,590.60, 225,687.96 and 103,141.92 is: 142,293.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,590.60 : 225,687.96 = 103,141.92 : x
  2. Step 2: Convert to fraction form
    163,590.60/225,687.96 = 103,141.92/x
  3. Step 3: Cross multiply
    163,590.60x = 225,687.96 × 103,141.92
  4. Step 4: Simplify right side
    163,590.60x = 23,277,889,515.28
  5. Step 5: Solve for x
    x = 23,277,889,515.28/163,590.60
  6. Step 6: Final answer
    x = 142,293.56

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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.