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Finding the Fourth Proportional to 73,039.56, 109,751.99 and 39,330.50

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Solution

The fourth proportional to 73,039.56, 109,751.99 and 39,330.50 is: 59,099.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,039.56 : 109,751.99 = 39,330.50 : x
  2. Step 2: Convert to fraction form
    73,039.56/109,751.99 = 39,330.50/x
  3. Step 3: Cross multiply
    73,039.56x = 109,751.99 × 39,330.50
  4. Step 4: Simplify right side
    73,039.56x = 4,316,600,456.34
  5. Step 5: Solve for x
    x = 4,316,600,456.34/73,039.56
  6. Step 6: Final answer
    x = 59,099.49

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1.5x scale

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.