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Finding the Fourth Proportional to 117,840.38, 176,788.25 and 38,954.60

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Solution

The fourth proportional to 117,840.38, 176,788.25 and 38,954.60 is: 58,441.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,840.38 : 176,788.25 = 38,954.60 : x
  2. Step 2: Convert to fraction form
    117,840.38/176,788.25 = 38,954.60/x
  3. Step 3: Cross multiply
    117,840.38x = 176,788.25 × 38,954.60
  4. Step 4: Simplify right side
    117,840.38x = 6,886,715,563.45
  5. Step 5: Solve for x
    x = 6,886,715,563.45/117,840.38
  6. Step 6: Final answer
    x = 58,441.05

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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.