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Finding the Fourth Proportional to 73,254.85, 109,971.99 and 48,315.76

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Solution

The fourth proportional to 73,254.85, 109,971.99 and 48,315.76 is: 72,532.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,254.85 : 109,971.99 = 48,315.76 : x
  2. Step 2: Convert to fraction form
    73,254.85/109,971.99 = 48,315.76/x
  3. Step 3: Cross multiply
    73,254.85x = 109,971.99 × 48,315.76
  4. Step 4: Simplify right side
    73,254.85x = 5,313,380,000.63
  5. Step 5: Solve for x
    x = 5,313,380,000.63/73,254.85
  6. Step 6: Final answer
    x = 72,532.81

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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.