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Finding the Fourth Proportional to 352,485.12, 486,434.52 and 191,340.48

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Solution

The fourth proportional to 352,485.12, 486,434.52 and 191,340.48 is: 264,052.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,485.12 : 486,434.52 = 191,340.48 : x
  2. Step 2: Convert to fraction form
    352,485.12/486,434.52 = 191,340.48/x
  3. Step 3: Cross multiply
    352,485.12x = 486,434.52 × 191,340.48
  4. Step 4: Simplify right side
    352,485.12x = 93,074,614,545.37
  5. Step 5: Solve for x
    x = 93,074,614,545.37/352,485.12
  6. Step 6: Final answer
    x = 264,052.61

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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.