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Finding the Fourth Proportional to 352,860.56, 486,941.59 and 191,718.15

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Solution

The fourth proportional to 352,860.56, 486,941.59 and 191,718.15 is: 264,567.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,860.56 : 486,941.59 = 191,718.15 : x
  2. Step 2: Convert to fraction form
    352,860.56/486,941.59 = 191,718.15/x
  3. Step 3: Cross multiply
    352,860.56x = 486,941.59 × 191,718.15
  4. Step 4: Simplify right side
    352,860.56x = 93,355,540,792.86
  5. Step 5: Solve for x
    x = 93,355,540,792.86/352,860.56
  6. Step 6: Final answer
    x = 264,567.80

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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.