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Finding the Fourth Proportional to 205,483.92, 308,081.00 and 79,017.92

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Solution

The fourth proportional to 205,483.92, 308,081.00 and 79,017.92 is: 118,471.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,483.92 : 308,081.00 = 79,017.92 : x
  2. Step 2: Convert to fraction form
    205,483.92/308,081.00 = 79,017.92/x
  3. Step 3: Cross multiply
    205,483.92x = 308,081.00 × 79,017.92
  4. Step 4: Simplify right side
    205,483.92x = 24,343,917,876.03
  5. Step 5: Solve for x
    x = 24,343,917,876.03/205,483.92
  6. Step 6: Final answer
    x = 118,471.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.