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Finding the Fourth Proportional to 352,605.49, 486,606.66 and 199,641.04

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Solution

The fourth proportional to 352,605.49, 486,606.66 and 199,641.04 is: 275,510.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,605.49 : 486,606.66 = 199,641.04 : x
  2. Step 2: Convert to fraction form
    352,605.49/486,606.66 = 199,641.04/x
  3. Step 3: Cross multiply
    352,605.49x = 486,606.66 × 199,641.04
  4. Step 4: Simplify right side
    352,605.49x = 97,146,657,708.16
  5. Step 5: Solve for x
    x = 97,146,657,708.16/352,605.49
  6. Step 6: Final answer
    x = 275,510.91

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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.