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Finding the Fourth Proportional to 117,490.88, 176,216.88 and 38,605.79

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Solution

The fourth proportional to 117,490.88, 176,216.88 and 38,605.79 is: 57,902.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,490.88 : 176,216.88 = 38,605.79 : x
  2. Step 2: Convert to fraction form
    117,490.88/176,216.88 = 38,605.79/x
  3. Step 3: Cross multiply
    117,490.88x = 176,216.88 × 38,605.79
  4. Step 4: Simplify right side
    117,490.88x = 6,802,991,863.74
  5. Step 5: Solve for x
    x = 6,802,991,863.74/117,490.88
  6. Step 6: Final answer
    x = 57,902.30

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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.