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Finding the Fourth Proportional to 105,359.64, 145,396.44 and 60,035.64

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Solution

The fourth proportional to 105,359.64, 145,396.44 and 60,035.64 is: 82,849.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,359.64 : 145,396.44 = 60,035.64 : x
  2. Step 2: Convert to fraction form
    105,359.64/145,396.44 = 60,035.64/x
  3. Step 3: Cross multiply
    105,359.64x = 145,396.44 × 60,035.64
  4. Step 4: Simplify right side
    105,359.64x = 8,728,968,329.12
  5. Step 5: Solve for x
    x = 8,728,968,329.12/105,359.64
  6. Step 6: Final answer
    x = 82,849.26

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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.