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Finding the Fourth Proportional to 79,583.91, 109,841.39 and 45,615.16

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Solution

The fourth proportional to 79,583.91, 109,841.39 and 45,615.16 is: 62,957.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,583.91 : 109,841.39 = 45,615.16 : x
  2. Step 2: Convert to fraction form
    79,583.91/109,841.39 = 45,615.16/x
  3. Step 3: Cross multiply
    79,583.91x = 109,841.39 × 45,615.16
  4. Step 4: Simplify right side
    79,583.91x = 5,010,432,659.76
  5. Step 5: Solve for x
    x = 5,010,432,659.76/79,583.91
  6. Step 6: Final answer
    x = 62,957.86

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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.