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Finding the Fourth Proportional to 117,710.52, 162,437.10 and 66,727.95

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Solution

The fourth proportional to 117,710.52, 162,437.10 and 66,727.95 is: 92,082.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,710.52 : 162,437.10 = 66,727.95 : x
  2. Step 2: Convert to fraction form
    117,710.52/162,437.10 = 66,727.95/x
  3. Step 3: Cross multiply
    117,710.52x = 162,437.10 × 66,727.95
  4. Step 4: Simplify right side
    117,710.52x = 10,839,094,686.95
  5. Step 5: Solve for x
    x = 10,839,094,686.95/117,710.52
  6. Step 6: Final answer
    x = 92,082.63

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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.