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Finding the Fourth Proportional to 122,796.28, 169,468.68 and 69,078.10

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Solution

The fourth proportional to 122,796.28, 169,468.68 and 69,078.10 is: 95,333.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,796.28 : 169,468.68 = 69,078.10 : x
  2. Step 2: Convert to fraction form
    122,796.28/169,468.68 = 69,078.10/x
  3. Step 3: Cross multiply
    122,796.28x = 169,468.68 × 69,078.10
  4. Step 4: Simplify right side
    122,796.28x = 11,706,574,423.91
  5. Step 5: Solve for x
    x = 11,706,574,423.91/122,796.28
  6. Step 6: Final answer
    x = 95,333.30

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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.