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Finding the Fourth Proportional to 202,881.84, 279,985.23 and 112,236.27

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Solution

The fourth proportional to 202,881.84, 279,985.23 and 112,236.27 is: 154,890.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,881.84 : 279,985.23 = 112,236.27 : x
  2. Step 2: Convert to fraction form
    202,881.84/279,985.23 = 112,236.27/x
  3. Step 3: Cross multiply
    202,881.84x = 279,985.23 × 112,236.27
  4. Step 4: Simplify right side
    202,881.84x = 31,424,497,870.29
  5. Step 5: Solve for x
    x = 31,424,497,870.29/202,881.84
  6. Step 6: Final answer
    x = 154,890.64

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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.