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Finding the Fourth Proportional to 117,840.72, 176,788.80 and 38,954.94

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Solution

The fourth proportional to 117,840.72, 176,788.80 and 38,954.94 is: 58,441.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,840.72 : 176,788.80 = 38,954.94 : x
  2. Step 2: Convert to fraction form
    117,840.72/176,788.80 = 38,954.94/x
  3. Step 3: Cross multiply
    117,840.72x = 176,788.80 × 38,954.94
  4. Step 4: Simplify right side
    117,840.72x = 6,886,797,096.67
  5. Step 5: Solve for x
    x = 6,886,797,096.67/117,840.72
  6. Step 6: Final answer
    x = 58,441.57

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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.