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Finding the Fourth Proportional to 79,628.64, 119,402.66 and 35,269

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Solution

The fourth proportional to 79,628.64, 119,402.66 and 35,269 is: 52,885.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,628.64 : 119,402.66 = 35,269 : x
  2. Step 2: Convert to fraction form
    79,628.64/119,402.66 = 35,269/x
  3. Step 3: Cross multiply
    79,628.64x = 119,402.66 × 35,269
  4. Step 4: Simplify right side
    79,628.64x = 4,211,212,415.54
  5. Step 5: Solve for x
    x = 4,211,212,415.54/79,628.64
  6. Step 6: Final answer
    x = 52,885.65

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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.