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Finding the Fourth Proportional to 117,684.13, 162,400.12 and 67,373.41

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Solution

The fourth proportional to 117,684.13, 162,400.12 and 67,373.41 is: 92,973.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,684.13 : 162,400.12 = 67,373.41 : x
  2. Step 2: Convert to fraction form
    117,684.13/162,400.12 = 67,373.41/x
  3. Step 3: Cross multiply
    117,684.13x = 162,400.12 × 67,373.41
  4. Step 4: Simplify right side
    117,684.13x = 10,941,449,868.81
  5. Step 5: Solve for x
    x = 10,941,449,868.81/117,684.13
  6. Step 6: Final answer
    x = 92,973.03

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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.