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Finding the Fourth Proportional to 79,455.62, 109,696.92 and 52,621.14

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Solution

The fourth proportional to 79,455.62, 109,696.92 and 52,621.14 is: 72,649.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,455.62 : 109,696.92 = 52,621.14 : x
  2. Step 2: Convert to fraction form
    79,455.62/109,696.92 = 52,621.14/x
  3. Step 3: Cross multiply
    79,455.62x = 109,696.92 × 52,621.14
  4. Step 4: Simplify right side
    79,455.62x = 5,772,376,984.89
  5. Step 5: Solve for x
    x = 5,772,376,984.89/79,455.62
  6. Step 6: Final answer
    x = 72,649.07

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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.