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Finding the Fourth Proportional to 79,214.94, 109,275.73 and 53,712.68

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Solution

The fourth proportional to 79,214.94, 109,275.73 and 53,712.68 is: 74,095.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,214.94 : 109,275.73 = 53,712.68 : x
  2. Step 2: Convert to fraction form
    79,214.94/109,275.73 = 53,712.68/x
  3. Step 3: Cross multiply
    79,214.94x = 109,275.73 × 53,712.68
  4. Step 4: Simplify right side
    79,214.94x = 5,869,491,636.60
  5. Step 5: Solve for x
    x = 5,869,491,636.60/79,214.94
  6. Step 6: Final answer
    x = 74,095.77

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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.