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Finding the Fourth Proportional to 74,581.96, 111,725.30 and 65,232.53

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Solution

The fourth proportional to 74,581.96, 111,725.30 and 65,232.53 is: 97,719.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,581.96 : 111,725.30 = 65,232.53 : x
  2. Step 2: Convert to fraction form
    74,581.96/111,725.30 = 65,232.53/x
  3. Step 3: Cross multiply
    74,581.96x = 111,725.30 × 65,232.53
  4. Step 4: Simplify right side
    74,581.96x = 7,288,123,984.01
  5. Step 5: Solve for x
    x = 7,288,123,984.01/74,581.96
  6. Step 6: Final answer
    x = 97,719.67

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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.