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Finding the Fourth Proportional to 202,539.41, 279,503.48 and 111,895.39

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Solution

The fourth proportional to 202,539.41, 279,503.48 and 111,895.39 is: 154,415.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,539.41 : 279,503.48 = 111,895.39 : x
  2. Step 2: Convert to fraction form
    202,539.41/279,503.48 = 111,895.39/x
  3. Step 3: Cross multiply
    202,539.41x = 279,503.48 × 111,895.39
  4. Step 4: Simplify right side
    202,539.41x = 31,275,150,900.96
  5. Step 5: Solve for x
    x = 31,275,150,900.96/202,539.41
  6. Step 6: Final answer
    x = 154,415.14

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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.