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Finding the Fourth Proportional to 117,980.40, 176,974.96 and 39,101.52

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Solution

The fourth proportional to 117,980.40, 176,974.96 and 39,101.52 is: 58,653.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,980.40 : 176,974.96 = 39,101.52 : x
  2. Step 2: Convert to fraction form
    117,980.40/176,974.96 = 39,101.52/x
  3. Step 3: Cross multiply
    117,980.40x = 176,974.96 × 39,101.52
  4. Step 4: Simplify right side
    117,980.40x = 6,919,989,937.94
  5. Step 5: Solve for x
    x = 6,919,989,937.94/117,980.40
  6. Step 6: Final answer
    x = 58,653.73

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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.