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Finding the Fourth Proportional to 202,180.88, 279,009.62 and 112,756.88

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Solution

The fourth proportional to 202,180.88, 279,009.62 and 112,756.88 is: 155,604.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,180.88 : 279,009.62 = 112,756.88 : x
  2. Step 2: Convert to fraction form
    202,180.88/279,009.62 = 112,756.88/x
  3. Step 3: Cross multiply
    202,180.88x = 279,009.62 × 112,756.88
  4. Step 4: Simplify right side
    202,180.88x = 31,460,252,282.35
  5. Step 5: Solve for x
    x = 31,460,252,282.35/202,180.88
  6. Step 6: Final answer
    x = 155,604.49

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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.