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Finding the Fourth Proportional to 352,703.16, 486,448.86 and 231,968.43

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Solution

The fourth proportional to 352,703.16, 486,448.86 and 231,968.43 is: 319,931.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,703.16 : 486,448.86 = 231,968.43 : x
  2. Step 2: Convert to fraction form
    352,703.16/486,448.86 = 231,968.43/x
  3. Step 3: Cross multiply
    352,703.16x = 486,448.86 × 231,968.43
  4. Step 4: Simplify right side
    352,703.16x = 112,840,778,329.49
  5. Step 5: Solve for x
    x = 112,840,778,329.49/352,703.16
  6. Step 6: Final answer
    x = 319,931.29

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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.