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Finding the Fourth Proportional to 117,765.77, 162,521.03 and 67,474.49

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Solution

The fourth proportional to 117,765.77, 162,521.03 and 67,474.49 is: 93,117.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,765.77 : 162,521.03 = 67,474.49 : x
  2. Step 2: Convert to fraction form
    117,765.77/162,521.03 = 67,474.49/x
  3. Step 3: Cross multiply
    117,765.77x = 162,521.03 × 67,474.49
  4. Step 4: Simplify right side
    117,765.77x = 10,966,022,969.61
  5. Step 5: Solve for x
    x = 10,966,022,969.61/117,765.77
  6. Step 6: Final answer
    x = 93,117.24

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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.