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Finding the Fourth Proportional to 122,082.66, 168,465.72 and 67,632.96

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Solution

The fourth proportional to 122,082.66, 168,465.72 and 67,632.96 is: 93,328.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,082.66 : 168,465.72 = 67,632.96 : x
  2. Step 2: Convert to fraction form
    122,082.66/168,465.72 = 67,632.96/x
  3. Step 3: Cross multiply
    122,082.66x = 168,465.72 × 67,632.96
  4. Step 4: Simplify right side
    122,082.66x = 11,393,835,302.13
  5. Step 5: Solve for x
    x = 11,393,835,302.13/122,082.66
  6. Step 6: Final answer
    x = 93,328.86

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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.