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Finding the Fourth Proportional to 79,314.84, 109,474.38 and 53,864.28

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Solution

The fourth proportional to 79,314.84, 109,474.38 and 53,864.28 is: 74,346.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,314.84 : 109,474.38 = 53,864.28 : x
  2. Step 2: Convert to fraction form
    79,314.84/109,474.38 = 53,864.28/x
  3. Step 3: Cross multiply
    79,314.84x = 109,474.38 × 53,864.28
  4. Step 4: Simplify right side
    79,314.84x = 5,896,758,657.15
  5. Step 5: Solve for x
    x = 5,896,758,657.15/79,314.84
  6. Step 6: Final answer
    x = 74,346.22

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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.