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Finding the Fourth Proportional to 352,538.82, 486,503.57 and 191,393.87

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Solution

The fourth proportional to 352,538.82, 486,503.57 and 191,393.87 is: 264,123.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,538.82 : 486,503.57 = 191,393.87 : x
  2. Step 2: Convert to fraction form
    352,538.82/486,503.57 = 191,393.87/x
  3. Step 3: Cross multiply
    352,538.82x = 486,503.57 × 191,393.87
  4. Step 4: Simplify right side
    352,538.82x = 93,113,800,810.07
  5. Step 5: Solve for x
    x = 93,113,800,810.07/352,538.82
  6. Step 6: Final answer
    x = 264,123.54

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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.