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Finding the Fourth Proportional to 352,464.49, 486,401.37 and 191,319.51

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Solution

The fourth proportional to 352,464.49, 486,401.37 and 191,319.51 is: 264,021.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,464.49 : 486,401.37 = 191,319.51 : x
  2. Step 2: Convert to fraction form
    352,464.49/486,401.37 = 191,319.51/x
  3. Step 3: Cross multiply
    352,464.49x = 486,401.37 × 191,319.51
  4. Step 4: Simplify right side
    352,464.49x = 93,058,071,771.73
  5. Step 5: Solve for x
    x = 93,058,071,771.73/352,464.49
  6. Step 6: Final answer
    x = 264,021.13

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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.