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Finding the Fourth Proportional to 117,468.16, 162,106.17 and 63,753.21

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Solution

The fourth proportional to 117,468.16, 162,106.17 and 63,753.21 is: 87,979.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,468.16 : 162,106.17 = 63,753.21 : x
  2. Step 2: Convert to fraction form
    117,468.16/162,106.17 = 63,753.21/x
  3. Step 3: Cross multiply
    117,468.16x = 162,106.17 × 63,753.21
  4. Step 4: Simplify right side
    117,468.16x = 10,334,787,569.01
  5. Step 5: Solve for x
    x = 10,334,787,569.01/117,468.16
  6. Step 6: Final answer
    x = 87,979.48

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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.