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Finding the Fourth Proportional to 323,693.90, 446,699.51 and 187,808.77

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Solution

The fourth proportional to 323,693.90, 446,699.51 and 187,808.77 is: 259,177.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,693.90 : 446,699.51 = 187,808.77 : x
  2. Step 2: Convert to fraction form
    323,693.90/446,699.51 = 187,808.77/x
  3. Step 3: Cross multiply
    323,693.90x = 446,699.51 × 187,808.77
  4. Step 4: Simplify right side
    323,693.90x = 83,894,085,532.70
  5. Step 5: Solve for x
    x = 83,894,085,532.70/323,693.90
  6. Step 6: Final answer
    x = 259,177.22

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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.