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Finding the Fourth Proportional to 117,596.64, 162,296.60 and 66,612.84

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Solution

The fourth proportional to 117,596.64, 162,296.60 and 66,612.84 is: 91,933.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,596.64 : 162,296.60 = 66,612.84 : x
  2. Step 2: Convert to fraction form
    117,596.64/162,296.60 = 66,612.84/x
  3. Step 3: Cross multiply
    117,596.64x = 162,296.60 × 66,612.84
  4. Step 4: Simplify right side
    117,596.64x = 10,811,037,448.34
  5. Step 5: Solve for x
    x = 10,811,037,448.34/117,596.64
  6. Step 6: Final answer
    x = 91,933.22

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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.