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Finding the Fourth Proportional to 202,235.93, 279,085.37 and 111,591.87

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Solution

The fourth proportional to 202,235.93, 279,085.37 and 111,591.87 is: 153,996.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,235.93 : 279,085.37 = 111,591.87 : x
  2. Step 2: Convert to fraction form
    202,235.93/279,085.37 = 111,591.87/x
  3. Step 3: Cross multiply
    202,235.93x = 279,085.37 × 111,591.87
  4. Step 4: Simplify right side
    202,235.93x = 31,143,657,769.98
  5. Step 5: Solve for x
    x = 31,143,657,769.98/202,235.93
  6. Step 6: Final answer
    x = 153,996.66

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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.