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Finding the Fourth Proportional to 267,319.42, 401,015.99 and 89,840.19

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Solution

The fourth proportional to 267,319.42, 401,015.99 and 89,840.19 is: 134,772.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,319.42 : 401,015.99 = 89,840.19 : x
  2. Step 2: Convert to fraction form
    267,319.42/401,015.99 = 89,840.19/x
  3. Step 3: Cross multiply
    267,319.42x = 401,015.99 × 89,840.19
  4. Step 4: Simplify right side
    267,319.42x = 36,027,352,734.64
  5. Step 5: Solve for x
    x = 36,027,352,734.64/267,319.42
  6. Step 6: Final answer
    x = 134,772.67

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Why These Related Problems?

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