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Finding the Fourth Proportional to 117,468.40, 162,106.50 and 63,753.46

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Solution

The fourth proportional to 117,468.40, 162,106.50 and 63,753.46 is: 87,979.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,468.40 : 162,106.50 = 63,753.46 : x
  2. Step 2: Convert to fraction form
    117,468.40/162,106.50 = 63,753.46/x
  3. Step 3: Cross multiply
    117,468.40x = 162,106.50 × 63,753.46
  4. Step 4: Simplify right side
    117,468.40x = 10,334,850,263.49
  5. Step 5: Solve for x
    x = 10,334,850,263.49/117,468.40
  6. Step 6: Final answer
    x = 87,979.83

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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.