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Finding the Fourth Proportional to 153,371.88, 211,610.70 and 92,102.28

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Solution

The fourth proportional to 153,371.88, 211,610.70 and 92,102.28 is: 127,075.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,371.88 : 211,610.70 = 92,102.28 : x
  2. Step 2: Convert to fraction form
    153,371.88/211,610.70 = 92,102.28/x
  3. Step 3: Cross multiply
    153,371.88x = 211,610.70 × 92,102.28
  4. Step 4: Simplify right side
    153,371.88x = 19,489,827,942.40
  5. Step 5: Solve for x
    x = 19,489,827,942.40/153,371.88
  6. Step 6: Final answer
    x = 127,075.63

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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.