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Finding the Fourth Proportional to 352,389.50, 486,297.76 and 191,244.51

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Solution

The fourth proportional to 352,389.50, 486,297.76 and 191,244.51 is: 263,917.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,389.50 : 486,297.76 = 191,244.51 : x
  2. Step 2: Convert to fraction form
    352,389.50/486,297.76 = 191,244.51/x
  3. Step 3: Cross multiply
    352,389.50x = 486,297.76 × 191,244.51
  4. Step 4: Simplify right side
    352,389.50x = 93,001,776,825.30
  5. Step 5: Solve for x
    x = 93,001,776,825.30/352,389.50
  6. Step 6: Final answer
    x = 263,917.56

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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.