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Finding the Fourth Proportional to 68,313.63, 102,505.30 and 46,080.42

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Solution

The fourth proportional to 68,313.63, 102,505.30 and 46,080.42 is: 69,144.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,313.63 : 102,505.30 = 46,080.42 : x
  2. Step 2: Convert to fraction form
    68,313.63/102,505.30 = 46,080.42/x
  3. Step 3: Cross multiply
    68,313.63x = 102,505.30 × 46,080.42
  4. Step 4: Simplify right side
    68,313.63x = 4,723,486,776.63
  5. Step 5: Solve for x
    x = 4,723,486,776.63/68,313.63
  6. Step 6: Final answer
    x = 69,144.13

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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.