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Finding the Fourth Proportional to 153,251.82, 211,493.61 and 92,788.11

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Solution

The fourth proportional to 153,251.82, 211,493.61 and 92,788.11 is: 128,051.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,251.82 : 211,493.61 = 92,788.11 : x
  2. Step 2: Convert to fraction form
    153,251.82/211,493.61 = 92,788.11/x
  3. Step 3: Cross multiply
    153,251.82x = 211,493.61 × 92,788.11
  4. Step 4: Simplify right side
    153,251.82x = 19,624,092,348.98
  5. Step 5: Solve for x
    x = 19,624,092,348.98/153,251.82
  6. Step 6: Final answer
    x = 128,051.28

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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.