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Finding the Fourth Proportional to 368,185.10, 508,092.26 and 207,036.71

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Solution

The fourth proportional to 368,185.10, 508,092.26 and 207,036.71 is: 285,708.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,185.10 : 508,092.26 = 207,036.71 : x
  2. Step 2: Convert to fraction form
    368,185.10/508,092.26 = 207,036.71/x
  3. Step 3: Cross multiply
    368,185.10x = 508,092.26 × 207,036.71
  4. Step 4: Simplify right side
    368,185.10x = 105,193,749,886.87
  5. Step 5: Solve for x
    x = 105,193,749,886.87/368,185.10
  6. Step 6: Final answer
    x = 285,708.87

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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.