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Finding the Fourth Proportional to 239,401.99, 359,113.92 and 89,603.43

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Solution

The fourth proportional to 239,401.99, 359,113.92 and 89,603.43 is: 134,409.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,401.99 : 359,113.92 = 89,603.43 : x
  2. Step 2: Convert to fraction form
    239,401.99/359,113.92 = 89,603.43/x
  3. Step 3: Cross multiply
    239,401.99x = 359,113.92 × 89,603.43
  4. Step 4: Simplify right side
    239,401.99x = 32,177,838,992.75
  5. Step 5: Solve for x
    x = 32,177,838,992.75/239,401.99
  6. Step 6: Final answer
    x = 134,409.24

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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.