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Finding the Fourth Proportional to 326,663.72, 450,717.07 and 190,620.02

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Solution

The fourth proportional to 326,663.72, 450,717.07 and 190,620.02 is: 263,009.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,663.72 : 450,717.07 = 190,620.02 : x
  2. Step 2: Convert to fraction form
    326,663.72/450,717.07 = 190,620.02/x
  3. Step 3: Cross multiply
    326,663.72x = 450,717.07 × 190,620.02
  4. Step 4: Simplify right side
    326,663.72x = 85,915,696,897.74
  5. Step 5: Solve for x
    x = 85,915,696,897.74/326,663.72
  6. Step 6: Final answer
    x = 263,009.61

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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.