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Finding the Fourth Proportional to 368,194.79, 508,105.62 and 207,046.40

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Solution

The fourth proportional to 368,194.79, 508,105.62 and 207,046.40 is: 285,722.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,194.79 : 508,105.62 = 207,046.40 : x
  2. Step 2: Convert to fraction form
    368,194.79/508,105.62 = 207,046.40/x
  3. Step 3: Cross multiply
    368,194.79x = 508,105.62 × 207,046.40
  4. Step 4: Simplify right side
    368,194.79x = 105,201,436,900.24
  5. Step 5: Solve for x
    x = 105,201,436,900.24/368,194.79
  6. Step 6: Final answer
    x = 285,722.23

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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.