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Finding the Fourth Proportional to 202,300.92, 279,173.88 and 111,656.88

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Solution

The fourth proportional to 202,300.92, 279,173.88 and 111,656.88 is: 154,085.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,300.92 : 279,173.88 = 111,656.88 : x
  2. Step 2: Convert to fraction form
    202,300.92/279,173.88 = 111,656.88/x
  3. Step 3: Cross multiply
    202,300.92x = 279,173.88 × 111,656.88
  4. Step 4: Simplify right side
    202,300.92x = 31,171,684,418.29
  5. Step 5: Solve for x
    x = 31,171,684,418.29/202,300.92
  6. Step 6: Final answer
    x = 154,085.73

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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.