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Finding the Fourth Proportional to 352,465.49, 486,402.75 and 191,320.51

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Solution

The fourth proportional to 352,465.49, 486,402.75 and 191,320.51 is: 264,022.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,465.49 : 486,402.75 = 191,320.51 : x
  2. Step 2: Convert to fraction form
    352,465.49/486,402.75 = 191,320.51/x
  3. Step 3: Cross multiply
    352,465.49x = 486,402.75 × 191,320.51
  4. Step 4: Simplify right side
    352,465.49x = 93,058,822,195.40
  5. Step 5: Solve for x
    x = 93,058,822,195.40/352,465.49
  6. Step 6: Final answer
    x = 264,022.51

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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.