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Finding the Fourth Proportional to 117,425.40, 162,047.70 and 63,710.52

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Solution

The fourth proportional to 117,425.40, 162,047.70 and 63,710.52 is: 87,920.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,425.40 : 162,047.70 = 63,710.52 : x
  2. Step 2: Convert to fraction form
    117,425.40/162,047.70 = 63,710.52/x
  3. Step 3: Cross multiply
    117,425.40x = 162,047.70 × 63,710.52
  4. Step 4: Simplify right side
    117,425.40x = 10,324,143,231.80
  5. Step 5: Solve for x
    x = 10,324,143,231.80/117,425.40
  6. Step 6: Final answer
    x = 87,920.87

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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.