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Finding the Fourth Proportional to 122,270.14, 168,768.66 and 79,835.14

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Solution

The fourth proportional to 122,270.14, 168,768.66 and 79,835.14 is: 110,195.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,270.14 : 168,768.66 = 79,835.14 : x
  2. Step 2: Convert to fraction form
    122,270.14/168,768.66 = 79,835.14/x
  3. Step 3: Cross multiply
    122,270.14x = 168,768.66 × 79,835.14
  4. Step 4: Simplify right side
    122,270.14x = 13,473,669,598.71
  5. Step 5: Solve for x
    x = 13,473,669,598.71/122,270.14
  6. Step 6: Final answer
    x = 110,195.91

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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.