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Finding the Fourth Proportional to 79,284.63, 109,412.82 and 43,473.90

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Solution

The fourth proportional to 79,284.63, 109,412.82 and 43,473.90 is: 59,994.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,284.63 : 109,412.82 = 43,473.90 : x
  2. Step 2: Convert to fraction form
    79,284.63/109,412.82 = 43,473.90/x
  3. Step 3: Cross multiply
    79,284.63x = 109,412.82 × 43,473.90
  4. Step 4: Simplify right side
    79,284.63x = 4,756,601,995.40
  5. Step 5: Solve for x
    x = 4,756,601,995.40/79,284.63
  6. Step 6: Final answer
    x = 59,994.00

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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.