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Finding the Fourth Proportional to 212,263.88, 292,685.00 and 163,755.41

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Solution

The fourth proportional to 212,263.88, 292,685.00 and 163,755.41 is: 225,797.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,263.88 : 292,685.00 = 163,755.41 : x
  2. Step 2: Convert to fraction form
    212,263.88/292,685.00 = 163,755.41/x
  3. Step 3: Cross multiply
    212,263.88x = 292,685.00 × 163,755.41
  4. Step 4: Simplify right side
    212,263.88x = 47,928,749,893.65
  5. Step 5: Solve for x
    x = 47,928,749,893.65/212,263.88
  6. Step 6: Final answer
    x = 225,797.96

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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.