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Finding the Fourth Proportional to 79,298.29, 109,423.95 and 47,466.49

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Solution

The fourth proportional to 79,298.29, 109,423.95 and 47,466.49 is: 65,499.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,298.29 : 109,423.95 = 47,466.49 : x
  2. Step 2: Convert to fraction form
    79,298.29/109,423.95 = 47,466.49/x
  3. Step 3: Cross multiply
    79,298.29x = 109,423.95 × 47,466.49
  4. Step 4: Simplify right side
    79,298.29x = 5,193,970,828.44
  5. Step 5: Solve for x
    x = 5,193,970,828.44/79,298.29
  6. Step 6: Final answer
    x = 65,499.15

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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.