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Finding the Fourth Proportional to 316,355.93, 436,571.22 and 173,115.98

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Solution

The fourth proportional to 316,355.93, 436,571.22 and 173,115.98 is: 238,900.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,355.93 : 436,571.22 = 173,115.98 : x
  2. Step 2: Convert to fraction form
    316,355.93/436,571.22 = 173,115.98/x
  3. Step 3: Cross multiply
    316,355.93x = 436,571.22 × 173,115.98
  4. Step 4: Simplify right side
    316,355.93x = 75,577,456,175.50
  5. Step 5: Solve for x
    x = 75,577,456,175.50/316,355.93
  6. Step 6: Final answer
    x = 238,900.08

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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.