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Finding the Fourth Proportional to 339,587.79, 468,640.38 and 186,627.80

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Solution

The fourth proportional to 339,587.79, 468,640.38 and 186,627.80 is: 257,551.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,587.79 : 468,640.38 = 186,627.80 : x
  2. Step 2: Convert to fraction form
    339,587.79/468,640.38 = 186,627.80/x
  3. Step 3: Cross multiply
    339,587.79x = 468,640.38 × 186,627.80
  4. Step 4: Simplify right side
    339,587.79x = 87,461,322,345.92
  5. Step 5: Solve for x
    x = 87,461,322,345.92/339,587.79
  6. Step 6: Final answer
    x = 257,551.43

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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.