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Finding the Fourth Proportional to 122,353.76, 168,750.78 and 101,096.12

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Solution

The fourth proportional to 122,353.76, 168,750.78 and 101,096.12 is: 139,432.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,353.76 : 168,750.78 = 101,096.12 : x
  2. Step 2: Convert to fraction form
    122,353.76/168,750.78 = 101,096.12/x
  3. Step 3: Cross multiply
    122,353.76x = 168,750.78 × 101,096.12
  4. Step 4: Simplify right side
    122,353.76x = 17,060,049,104.97
  5. Step 5: Solve for x
    x = 17,060,049,104.97/122,353.76
  6. Step 6: Final answer
    x = 139,432.16

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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.