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Finding the Fourth Proportional to 352,565.61, 486,540.52 and 191,420.68

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Solution

The fourth proportional to 352,565.61, 486,540.52 and 191,420.68 is: 264,160.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,565.61 : 486,540.52 = 191,420.68 : x
  2. Step 2: Convert to fraction form
    352,565.61/486,540.52 = 191,420.68/x
  3. Step 3: Cross multiply
    352,565.61x = 486,540.52 × 191,420.68
  4. Step 4: Simplify right side
    352,565.61x = 93,133,916,111.66
  5. Step 5: Solve for x
    x = 93,133,916,111.66/352,565.61
  6. Step 6: Final answer
    x = 264,160.53

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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.