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Finding the Fourth Proportional to 343,711.17, 515,623.86 and 144,046.58

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Solution

The fourth proportional to 343,711.17, 515,623.86 and 144,046.58 is: 216,093.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,711.17 : 515,623.86 = 144,046.58 : x
  2. Step 2: Convert to fraction form
    343,711.17/515,623.86 = 144,046.58/x
  3. Step 3: Cross multiply
    343,711.17x = 515,623.86 × 144,046.58
  4. Step 4: Simplify right side
    343,711.17x = 74,273,853,599.40
  5. Step 5: Solve for x
    x = 74,273,853,599.40/343,711.17
  6. Step 6: Final answer
    x = 216,093.80

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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.