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Finding the Fourth Proportional to 139,609.58, 209,535.28 and 73,096.26

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Solution

The fourth proportional to 139,609.58, 209,535.28 and 73,096.26 is: 109,707.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,609.58 : 209,535.28 = 73,096.26 : x
  2. Step 2: Convert to fraction form
    139,609.58/209,535.28 = 73,096.26/x
  3. Step 3: Cross multiply
    139,609.58x = 209,535.28 × 73,096.26
  4. Step 4: Simplify right side
    139,609.58x = 15,316,245,306.05
  5. Step 5: Solve for x
    x = 15,316,245,306.05/139,609.58
  6. Step 6: Final answer
    x = 109,707.70

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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.