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Finding the Fourth Proportional to 122,096.97, 168,484.86 and 74,365.70

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Solution

The fourth proportional to 122,096.97, 168,484.86 and 74,365.70 is: 102,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,096.97 : 168,484.86 = 74,365.70 : x
  2. Step 2: Convert to fraction form
    122,096.97/168,484.86 = 74,365.70/x
  3. Step 3: Cross multiply
    122,096.97x = 168,484.86 × 74,365.70
  4. Step 4: Simplify right side
    122,096.97x = 12,529,493,710.88
  5. Step 5: Solve for x
    x = 12,529,493,710.88/122,096.97
  6. Step 6: Final answer
    x = 102,619.20

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1.5x scale

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.