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Finding the Fourth Proportional to 339,941.61, 469,142.48 and 225,022.35

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Solution

The fourth proportional to 339,941.61, 469,142.48 and 225,022.35 is: 310,546.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,941.61 : 469,142.48 = 225,022.35 : x
  2. Step 2: Convert to fraction form
    339,941.61/469,142.48 = 225,022.35/x
  3. Step 3: Cross multiply
    339,941.61x = 469,142.48 × 225,022.35
  4. Step 4: Simplify right side
    339,941.61x = 105,567,545,656.27
  5. Step 5: Solve for x
    x = 105,567,545,656.27/339,941.61
  6. Step 6: Final answer
    x = 310,546.11

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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.