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Finding the Fourth Proportional to 352,859.84, 486,940.64 and 191,717.36

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Solution

The fourth proportional to 352,859.84, 486,940.64 and 191,717.36 is: 264,566.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,859.84 : 486,940.64 = 191,717.36 : x
  2. Step 2: Convert to fraction form
    352,859.84/486,940.64 = 191,717.36/x
  3. Step 3: Cross multiply
    352,859.84x = 486,940.64 × 191,717.36
  4. Step 4: Simplify right side
    352,859.84x = 93,354,973,977.51
  5. Step 5: Solve for x
    x = 93,354,973,977.51/352,859.84
  6. Step 6: Final answer
    x = 264,566.73

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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.