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Finding the Fourth Proportional to 117,691.88, 176,525.03 and 69,665.36

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Solution

The fourth proportional to 117,691.88, 176,525.03 and 69,665.36 is: 104,490.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,691.88 : 176,525.03 = 69,665.36 : x
  2. Step 2: Convert to fraction form
    117,691.88/176,525.03 = 69,665.36/x
  3. Step 3: Cross multiply
    117,691.88x = 176,525.03 × 69,665.36
  4. Step 4: Simplify right side
    117,691.88x = 12,297,679,055.50
  5. Step 5: Solve for x
    x = 12,297,679,055.50/117,691.88
  6. Step 6: Final answer
    x = 104,490.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.