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Finding the Fourth Proportional to 202,336.13, 279,223.86 and 112,912.13

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Solution

The fourth proportional to 202,336.13, 279,223.86 and 112,912.13 is: 155,818.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,336.13 : 279,223.86 = 112,912.13 : x
  2. Step 2: Convert to fraction form
    202,336.13/279,223.86 = 112,912.13/x
  3. Step 3: Cross multiply
    202,336.13x = 279,223.86 × 112,912.13
  4. Step 4: Simplify right side
    202,336.13x = 31,527,759,383.30
  5. Step 5: Solve for x
    x = 31,527,759,383.30/202,336.13
  6. Step 6: Final answer
    x = 155,818.74

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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.