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Finding the Fourth Proportional to 122,069.91, 168,473.54 and 88,188.01

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Solution

The fourth proportional to 122,069.91, 168,473.54 and 88,188.01 is: 121,711.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,069.91 : 168,473.54 = 88,188.01 : x
  2. Step 2: Convert to fraction form
    122,069.91/168,473.54 = 88,188.01/x
  3. Step 3: Cross multiply
    122,069.91x = 168,473.54 × 88,188.01
  4. Step 4: Simplify right side
    122,069.91x = 14,857,346,230.26
  5. Step 5: Solve for x
    x = 14,857,346,230.26/122,069.91
  6. Step 6: Final answer
    x = 121,711.78

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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.