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Finding the Fourth Proportional to 202,266.79, 279,146.06 and 111,642.37

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Solution

The fourth proportional to 202,266.79, 279,146.06 and 111,642.37 is: 154,076.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,266.79 : 279,146.06 = 111,642.37 : x
  2. Step 2: Convert to fraction form
    202,266.79/279,146.06 = 111,642.37/x
  3. Step 3: Cross multiply
    202,266.79x = 279,146.06 × 111,642.37
  4. Step 4: Simplify right side
    202,266.79x = 31,164,527,714.56
  5. Step 5: Solve for x
    x = 31,164,527,714.56/202,266.79
  6. Step 6: Final answer
    x = 154,076.34

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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.