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Finding the Fourth Proportional to 69,372.63, 104,054.64 and 42,723.69

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Solution

The fourth proportional to 69,372.63, 104,054.64 and 42,723.69 is: 64,082.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,372.63 : 104,054.64 = 42,723.69 : x
  2. Step 2: Convert to fraction form
    69,372.63/104,054.64 = 42,723.69/x
  3. Step 3: Cross multiply
    69,372.63x = 104,054.64 × 42,723.69
  4. Step 4: Simplify right side
    69,372.63x = 4,445,598,182.42
  5. Step 5: Solve for x
    x = 4,445,598,182.42/69,372.63
  6. Step 6: Final answer
    x = 64,082.88

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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.