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Finding the Fourth Proportional to 79,685.25, 109,965.65 and 44,357.25

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Solution

The fourth proportional to 79,685.25, 109,965.65 and 44,357.25 is: 61,213.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,685.25 : 109,965.65 = 44,357.25 : x
  2. Step 2: Convert to fraction form
    79,685.25/109,965.65 = 44,357.25/x
  3. Step 3: Cross multiply
    79,685.25x = 109,965.65 × 44,357.25
  4. Step 4: Simplify right side
    79,685.25x = 4,877,773,606.68
  5. Step 5: Solve for x
    x = 4,877,773,606.68/79,685.25
  6. Step 6: Final answer
    x = 61,213.01

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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.