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Finding the Fourth Proportional to 117,267.88, 161,731.62 and 76,950.28

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Solution

The fourth proportional to 117,267.88, 161,731.62 and 76,950.28 is: 106,127.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,267.88 : 161,731.62 = 76,950.28 : x
  2. Step 2: Convert to fraction form
    117,267.88/161,731.62 = 76,950.28/x
  3. Step 3: Cross multiply
    117,267.88x = 161,731.62 × 76,950.28
  4. Step 4: Simplify right side
    117,267.88x = 12,445,293,443.85
  5. Step 5: Solve for x
    x = 12,445,293,443.85/117,267.88
  6. Step 6: Final answer
    x = 106,127.04

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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.