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Finding the Fourth Proportional to 368,479.43, 552,725.98 and 115,755.18

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Solution

The fourth proportional to 368,479.43, 552,725.98 and 115,755.18 is: 173,634.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,479.43 : 552,725.98 = 115,755.18 : x
  2. Step 2: Convert to fraction form
    368,479.43/552,725.98 = 115,755.18/x
  3. Step 3: Cross multiply
    368,479.43x = 552,725.98 × 115,755.18
  4. Step 4: Simplify right side
    368,479.43x = 63,980,892,943.47
  5. Step 5: Solve for x
    x = 63,980,892,943.47/368,479.43
  6. Step 6: Final answer
    x = 173,634.91

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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.