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Finding the Fourth Proportional to 352,561.14, 486,531.60 and 191,412.96

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Solution

The fourth proportional to 352,561.14, 486,531.60 and 191,412.96 is: 264,148.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,561.14 : 486,531.60 = 191,412.96 : x
  2. Step 2: Convert to fraction form
    352,561.14/486,531.60 = 191,412.96/x
  3. Step 3: Cross multiply
    352,561.14x = 486,531.60 × 191,412.96
  4. Step 4: Simplify right side
    352,561.14x = 93,128,453,689.54
  5. Step 5: Solve for x
    x = 93,128,453,689.54/352,561.14
  6. Step 6: Final answer
    x = 264,148.38

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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.