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Finding the Fourth Proportional to 202,507.37, 279,448.59 and 120,927.68

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Solution

The fourth proportional to 202,507.37, 279,448.59 and 120,927.68 is: 166,873.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,507.37 : 279,448.59 = 120,927.68 : x
  2. Step 2: Convert to fraction form
    202,507.37/279,448.59 = 120,927.68/x
  3. Step 3: Cross multiply
    202,507.37x = 279,448.59 × 120,927.68
  4. Step 4: Simplify right side
    202,507.37x = 33,793,069,667.97
  5. Step 5: Solve for x
    x = 33,793,069,667.97/202,507.37
  6. Step 6: Final answer
    x = 166,873.28

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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.