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Finding the Fourth Proportional to 202,486.50, 279,431.37 and 113,062.50

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Solution

The fourth proportional to 202,486.50, 279,431.37 and 113,062.50 is: 156,026.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,486.50 : 279,431.37 = 113,062.50 : x
  2. Step 2: Convert to fraction form
    202,486.50/279,431.37 = 113,062.50/x
  3. Step 3: Cross multiply
    202,486.50x = 279,431.37 × 113,062.50
  4. Step 4: Simplify right side
    202,486.50x = 31,593,209,270.63
  5. Step 5: Solve for x
    x = 31,593,209,270.63/202,486.50
  6. Step 6: Final answer
    x = 156,026.25

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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.