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Finding the Fourth Proportional to 117,930.56, 162,741.84 and 64,216.22

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Solution

The fourth proportional to 117,930.56, 162,741.84 and 64,216.22 is: 88,617.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,930.56 : 162,741.84 = 64,216.22 : x
  2. Step 2: Convert to fraction form
    117,930.56/162,741.84 = 64,216.22/x
  3. Step 3: Cross multiply
    117,930.56x = 162,741.84 × 64,216.22
  4. Step 4: Simplify right side
    117,930.56x = 10,450,665,800.64
  5. Step 5: Solve for x
    x = 10,450,665,800.64/117,930.56
  6. Step 6: Final answer
    x = 88,617.11

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1.5x scale

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.