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Finding the Fourth Proportional to 79,584, 119,357.76 and 35,186.64

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Solution

The fourth proportional to 79,584, 119,357.76 and 35,186.64 is: 52,771.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,584 : 119,357.76 = 35,186.64 : x
  2. Step 2: Convert to fraction form
    79,584/119,357.76 = 35,186.64/x
  3. Step 3: Cross multiply
    79,584x = 119,357.76 × 35,186.64
  4. Step 4: Simplify right side
    79,584x = 4,199,798,532.33
  5. Step 5: Solve for x
    x = 4,199,798,532.33/79,584
  6. Step 6: Final answer
    x = 52,771.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.