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Finding the Fourth Proportional to 162,806.88, 224,675.73 and 91,186.41

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Solution

The fourth proportional to 162,806.88, 224,675.73 and 91,186.41 is: 125,838.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,806.88 : 224,675.73 = 91,186.41 : x
  2. Step 2: Convert to fraction form
    162,806.88/224,675.73 = 91,186.41/x
  3. Step 3: Cross multiply
    162,806.88x = 224,675.73 × 91,186.41
  4. Step 4: Simplify right side
    162,806.88x = 20,487,373,232.83
  5. Step 5: Solve for x
    x = 20,487,373,232.83/162,806.88
  6. Step 6: Final answer
    x = 125,838.50

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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.