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Finding the Fourth Proportional to 123,546.96, 170,495.10 and 66,958.32

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Solution

The fourth proportional to 123,546.96, 170,495.10 and 66,958.32 is: 92,402.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,546.96 : 170,495.10 = 66,958.32 : x
  2. Step 2: Convert to fraction form
    123,546.96/170,495.10 = 66,958.32/x
  3. Step 3: Cross multiply
    123,546.96x = 170,495.10 × 66,958.32
  4. Step 4: Simplify right side
    123,546.96x = 11,416,065,464.23
  5. Step 5: Solve for x
    x = 11,416,065,464.23/123,546.96
  6. Step 6: Final answer
    x = 92,402.64

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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.