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Finding the Fourth Proportional to 163,437.64, 225,562.21 and 98,942.41

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Solution

The fourth proportional to 163,437.64, 225,562.21 and 98,942.41 is: 136,551.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,437.64 : 225,562.21 = 98,942.41 : x
  2. Step 2: Convert to fraction form
    163,437.64/225,562.21 = 98,942.41/x
  3. Step 3: Cross multiply
    163,437.64x = 225,562.21 × 98,942.41
  4. Step 4: Simplify right side
    163,437.64x = 22,317,668,874.98
  5. Step 5: Solve for x
    x = 22,317,668,874.98/163,437.64
  6. Step 6: Final answer
    x = 136,551.59

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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.