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Finding the Fourth Proportional to 79,284.60, 109,412.46 and 43,473.69

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Solution

The fourth proportional to 79,284.60, 109,412.46 and 43,473.69 is: 59,993.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,284.60 : 109,412.46 = 43,473.69 : x
  2. Step 2: Convert to fraction form
    79,284.60/109,412.46 = 43,473.69/x
  3. Step 3: Cross multiply
    79,284.60x = 109,412.46 × 43,473.69
  4. Step 4: Simplify right side
    79,284.60x = 4,756,563,368.18
  5. Step 5: Solve for x
    x = 4,756,563,368.18/79,284.60
  6. Step 6: Final answer
    x = 59,993.53

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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.