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Finding the Fourth Proportional to 352,805.58, 486,875.07 and 191,661.84

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Solution

The fourth proportional to 352,805.58, 486,875.07 and 191,661.84 is: 264,495.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,805.58 : 486,875.07 = 191,661.84 : x
  2. Step 2: Convert to fraction form
    352,805.58/486,875.07 = 191,661.84/x
  3. Step 3: Cross multiply
    352,805.58x = 486,875.07 × 191,661.84
  4. Step 4: Simplify right side
    352,805.58x = 93,315,371,766.33
  5. Step 5: Solve for x
    x = 93,315,371,766.33/352,805.58
  6. Step 6: Final answer
    x = 264,495.17

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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.