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Finding the Fourth Proportional to 117,737.79, 162,473.20 and 66,753.95

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Solution

The fourth proportional to 117,737.79, 162,473.20 and 66,753.95 is: 92,117.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,737.79 : 162,473.20 = 66,753.95 : x
  2. Step 2: Convert to fraction form
    117,737.79/162,473.20 = 66,753.95/x
  3. Step 3: Cross multiply
    117,737.79x = 162,473.20 × 66,753.95
  4. Step 4: Simplify right side
    117,737.79x = 10,845,727,374.36
  5. Step 5: Solve for x
    x = 10,845,727,374.36/117,737.79
  6. Step 6: Final answer
    x = 92,117.64

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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.