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Finding the Fourth Proportional to 79,628.66, 119,416.83 and 35,254.46

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Solution

The fourth proportional to 79,628.66, 119,416.83 and 35,254.46 is: 52,870.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,628.66 : 119,416.83 = 35,254.46 : x
  2. Step 2: Convert to fraction form
    79,628.66/119,416.83 = 35,254.46/x
  3. Step 3: Cross multiply
    79,628.66x = 119,416.83 × 35,254.46
  4. Step 4: Simplify right side
    79,628.66x = 4,209,975,856.56
  5. Step 5: Solve for x
    x = 4,209,975,856.56/79,628.66
  6. Step 6: Final answer
    x = 52,870.11

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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.