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Finding the Fourth Proportional to 201,609.04, 278,104.60 and 126,026.32

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Solution

The fourth proportional to 201,609.04, 278,104.60 and 126,026.32 is: 173,843.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,609.04 : 278,104.60 = 126,026.32 : x
  2. Step 2: Convert to fraction form
    201,609.04/278,104.60 = 126,026.32/x
  3. Step 3: Cross multiply
    201,609.04x = 278,104.60 × 126,026.32
  4. Step 4: Simplify right side
    201,609.04x = 35,048,499,313.07
  5. Step 5: Solve for x
    x = 35,048,499,313.07/201,609.04
  6. Step 6: Final answer
    x = 173,843.89

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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.