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Finding the Fourth Proportional to 352,415.91, 486,334.43 and 191,270.96

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Solution

The fourth proportional to 352,415.91, 486,334.43 and 191,270.96 is: 263,954.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,415.91 : 486,334.43 = 191,270.96 : x
  2. Step 2: Convert to fraction form
    352,415.91/486,334.43 = 191,270.96/x
  3. Step 3: Cross multiply
    352,415.91x = 486,334.43 × 191,270.96
  4. Step 4: Simplify right side
    352,415.91x = 93,021,653,307.15
  5. Step 5: Solve for x
    x = 93,021,653,307.15/352,415.91
  6. Step 6: Final answer
    x = 263,954.18

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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.