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Finding the Fourth Proportional to 352,706.59, 486,738.60 and 191,564.78

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Solution

The fourth proportional to 352,706.59, 486,738.60 and 191,564.78 is: 264,361.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,706.59 : 486,738.60 = 191,564.78 : x
  2. Step 2: Convert to fraction form
    352,706.59/486,738.60 = 191,564.78/x
  3. Step 3: Cross multiply
    352,706.59x = 486,738.60 × 191,564.78
  4. Step 4: Simplify right side
    352,706.59x = 93,241,972,826.51
  5. Step 5: Solve for x
    x = 93,241,972,826.51/352,706.59
  6. Step 6: Final answer
    x = 264,361.30

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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.