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Finding the Fourth Proportional to 352,784.77, 486,843.38 and 191,639.82

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Solution

The fourth proportional to 352,784.77, 486,843.38 and 191,639.82 is: 264,463.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,784.77 : 486,843.38 = 191,639.82 : x
  2. Step 2: Convert to fraction form
    352,784.77/486,843.38 = 191,639.82/x
  3. Step 3: Cross multiply
    352,784.77x = 486,843.38 × 191,639.82
  4. Step 4: Simplify right side
    352,784.77x = 93,298,574,318.98
  5. Step 5: Solve for x
    x = 93,298,574,318.98/352,784.77
  6. Step 6: Final answer
    x = 264,463.16

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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.