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Finding the Fourth Proportional to 201,079.26, 277,619.40 and 124,679.52

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Solution

The fourth proportional to 201,079.26, 277,619.40 and 124,679.52 is: 172,138.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,079.26 : 277,619.40 = 124,679.52 : x
  2. Step 2: Convert to fraction form
    201,079.26/277,619.40 = 124,679.52/x
  3. Step 3: Cross multiply
    201,079.26x = 277,619.40 × 124,679.52
  4. Step 4: Simplify right side
    201,079.26x = 34,613,453,534.69
  5. Step 5: Solve for x
    x = 34,613,453,534.69/201,079.26
  6. Step 6: Final answer
    x = 172,138.36

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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.