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Finding the Fourth Proportional to 117,603.74, 162,296.80 and 67,318.94

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Solution

The fourth proportional to 117,603.74, 162,296.80 and 67,318.94 is: 92,902.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,603.74 : 162,296.80 = 67,318.94 : x
  2. Step 2: Convert to fraction form
    117,603.74/162,296.80 = 67,318.94/x
  3. Step 3: Cross multiply
    117,603.74x = 162,296.80 × 67,318.94
  4. Step 4: Simplify right side
    117,603.74x = 10,925,648,541.39
  5. Step 5: Solve for x
    x = 10,925,648,541.39/117,603.74
  6. Step 6: Final answer
    x = 92,902.22

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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.