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Finding the Fourth Proportional to 415,227.15, 622,841.13 and 115,708.59

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Solution

The fourth proportional to 415,227.15, 622,841.13 and 115,708.59 is: 173,563.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,227.15 : 622,841.13 = 115,708.59 : x
  2. Step 2: Convert to fraction form
    415,227.15/622,841.13 = 115,708.59/x
  3. Step 3: Cross multiply
    415,227.15x = 622,841.13 × 115,708.59
  4. Step 4: Simplify right side
    415,227.15x = 72,068,068,946.31
  5. Step 5: Solve for x
    x = 72,068,068,946.31/415,227.15
  6. Step 6: Final answer
    x = 173,563.00

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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.