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Finding the Fourth Proportional to 231,524.87, 347,300.73 and 89,370.81

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Solution

The fourth proportional to 231,524.87, 347,300.73 and 89,370.81 is: 134,061.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,524.87 : 347,300.73 = 89,370.81 : x
  2. Step 2: Convert to fraction form
    231,524.87/347,300.73 = 89,370.81/x
  3. Step 3: Cross multiply
    231,524.87x = 347,300.73 × 89,370.81
  4. Step 4: Simplify right side
    231,524.87x = 31,038,547,553.69
  5. Step 5: Solve for x
    x = 31,038,547,553.69/231,524.87
  6. Step 6: Final answer
    x = 134,061.40

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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.