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Finding the Fourth Proportional to 352,565.55, 486,538.92 and 191,419.29

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Solution

The fourth proportional to 352,565.55, 486,538.92 and 191,419.29 is: 264,157.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,565.55 : 486,538.92 = 191,419.29 : x
  2. Step 2: Convert to fraction form
    352,565.55/486,538.92 = 191,419.29/x
  3. Step 3: Cross multiply
    352,565.55x = 486,538.92 × 191,419.29
  4. Step 4: Simplify right side
    352,565.55x = 93,132,934,623.77
  5. Step 5: Solve for x
    x = 93,132,934,623.77/352,565.55
  6. Step 6: Final answer
    x = 264,157.78

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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.