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Finding the Fourth Proportional to 343,770.48, 515,555.88 and 144,085.44

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Solution

The fourth proportional to 343,770.48, 515,555.88 and 144,085.44 is: 216,086.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,770.48 : 515,555.88 = 144,085.44 : x
  2. Step 2: Convert to fraction form
    343,770.48/515,555.88 = 144,085.44/x
  3. Step 3: Cross multiply
    343,770.48x = 515,555.88 × 144,085.44
  4. Step 4: Simplify right side
    343,770.48x = 74,284,095,814.39
  5. Step 5: Solve for x
    x = 74,284,095,814.39/343,770.48
  6. Step 6: Final answer
    x = 216,086.31

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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.