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Finding the Fourth Proportional to 153,249.27, 211,480.71 and 88,721.22

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Solution

The fourth proportional to 153,249.27, 211,480.71 and 88,721.22 is: 122,433.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,249.27 : 211,480.71 = 88,721.22 : x
  2. Step 2: Convert to fraction form
    153,249.27/211,480.71 = 88,721.22/x
  3. Step 3: Cross multiply
    153,249.27x = 211,480.71 × 88,721.22
  4. Step 4: Simplify right side
    153,249.27x = 18,762,827,058.01
  5. Step 5: Solve for x
    x = 18,762,827,058.01/153,249.27
  6. Step 6: Final answer
    x = 122,433.39

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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.