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Finding the Fourth Proportional to 117,766.80, 162,519.20 and 64,052.32

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Solution

The fourth proportional to 117,766.80, 162,519.20 and 64,052.32 is: 88,392.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,766.80 : 162,519.20 = 64,052.32 : x
  2. Step 2: Convert to fraction form
    117,766.80/162,519.20 = 64,052.32/x
  3. Step 3: Cross multiply
    117,766.80x = 162,519.20 × 64,052.32
  4. Step 4: Simplify right side
    117,766.80x = 10,409,731,804.54
  5. Step 5: Solve for x
    x = 10,409,731,804.54/117,766.80
  6. Step 6: Final answer
    x = 88,392.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.