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Finding the Fourth Proportional to 352,805.08, 486,874.40 and 191,661.36

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Solution

The fourth proportional to 352,805.08, 486,874.40 and 191,661.36 is: 264,494.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,805.08 : 486,874.40 = 191,661.36 : x
  2. Step 2: Convert to fraction form
    352,805.08/486,874.40 = 191,661.36/x
  3. Step 3: Cross multiply
    352,805.08x = 486,874.40 × 191,661.36
  4. Step 4: Simplify right side
    352,805.08x = 93,315,009,653.18
  5. Step 5: Solve for x
    x = 93,315,009,653.18/352,805.08
  6. Step 6: Final answer
    x = 264,494.52

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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.