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Finding the Fourth Proportional to 202,316.67, 279,193.50 and 111,672.54

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Solution

The fourth proportional to 202,316.67, 279,193.50 and 111,672.54 is: 154,106.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,316.67 : 279,193.50 = 111,672.54 : x
  2. Step 2: Convert to fraction form
    202,316.67/279,193.50 = 111,672.54/x
  3. Step 3: Cross multiply
    202,316.67x = 279,193.50 × 111,672.54
  4. Step 4: Simplify right side
    202,316.67x = 31,178,247,296.49
  5. Step 5: Solve for x
    x = 31,178,247,296.49/202,316.67
  6. Step 6: Final answer
    x = 154,106.17

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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.