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Finding the Fourth Proportional to 79,092, 109,166.40 and 45,577.44

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Solution

The fourth proportional to 79,092, 109,166.40 and 45,577.44 is: 62,908.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,092 : 109,166.40 = 45,577.44 : x
  2. Step 2: Convert to fraction form
    79,092/109,166.40 = 45,577.44/x
  3. Step 3: Cross multiply
    79,092x = 109,166.40 × 45,577.44
  4. Step 4: Simplify right side
    79,092x = 4,975,525,046.02
  5. Step 5: Solve for x
    x = 4,975,525,046.02/79,092
  6. Step 6: Final answer
    x = 62,908.07

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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.