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Finding the Fourth Proportional to 117,985.32, 177,004.32 and 43,105.44

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Solution

The fourth proportional to 117,985.32, 177,004.32 and 43,105.44 is: 64,667.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,985.32 : 177,004.32 = 43,105.44 : x
  2. Step 2: Convert to fraction form
    117,985.32/177,004.32 = 43,105.44/x
  3. Step 3: Cross multiply
    117,985.32x = 177,004.32 × 43,105.44
  4. Step 4: Simplify right side
    117,985.32x = 7,629,849,095.50
  5. Step 5: Solve for x
    x = 7,629,849,095.50/117,985.32
  6. Step 6: Final answer
    x = 64,667.78

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