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Finding the Fourth Proportional to 69,892.08, 104,815.44 and 30,437.52

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Solution

The fourth proportional to 69,892.08, 104,815.44 and 30,437.52 is: 45,646.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,892.08 : 104,815.44 = 30,437.52 : x
  2. Step 2: Convert to fraction form
    69,892.08/104,815.44 = 30,437.52/x
  3. Step 3: Cross multiply
    69,892.08x = 104,815.44 × 30,437.52
  4. Step 4: Simplify right side
    69,892.08x = 3,190,322,051.31
  5. Step 5: Solve for x
    x = 3,190,322,051.31/69,892.08
  6. Step 6: Final answer
    x = 45,646.40

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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.