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Finding the Fourth Proportional to 79,297.06, 118,911.02 and 30,014.50

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Solution

The fourth proportional to 79,297.06, 118,911.02 and 30,014.50 is: 45,008.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,297.06 : 118,911.02 = 30,014.50 : x
  2. Step 2: Convert to fraction form
    79,297.06/118,911.02 = 30,014.50/x
  3. Step 3: Cross multiply
    79,297.06x = 118,911.02 × 30,014.50
  4. Step 4: Simplify right side
    79,297.06x = 3,569,054,809.79
  5. Step 5: Solve for x
    x = 3,569,054,809.79/79,297.06
  6. Step 6: Final answer
    x = 45,008.67

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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.