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Finding the Fourth Proportional to 202,602.20, 279,608.78 and 134,498.84

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Solution

The fourth proportional to 202,602.20, 279,608.78 and 134,498.84 is: 185,620.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,602.20 : 279,608.78 = 134,498.84 : x
  2. Step 2: Convert to fraction form
    202,602.20/279,608.78 = 134,498.84/x
  3. Step 3: Cross multiply
    202,602.20x = 279,608.78 × 134,498.84
  4. Step 4: Simplify right side
    202,602.20x = 37,607,056,563.82
  5. Step 5: Solve for x
    x = 37,607,056,563.82/202,602.20
  6. Step 6: Final answer
    x = 185,620.18

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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.