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Finding the Fourth Proportional to 122,354.13, 168,751.31 and 101,096.49

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Solution

The fourth proportional to 122,354.13, 168,751.31 and 101,096.49 is: 139,432.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,354.13 : 168,751.31 = 101,096.49 : x
  2. Step 2: Convert to fraction form
    122,354.13/168,751.31 = 101,096.49/x
  3. Step 3: Cross multiply
    122,354.13x = 168,751.31 × 101,096.49
  4. Step 4: Simplify right side
    122,354.13x = 17,060,164,618.42
  5. Step 5: Solve for x
    x = 17,060,164,618.42/122,354.13
  6. Step 6: Final answer
    x = 139,432.68

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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.