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Finding the Fourth Proportional to 293,315.60, 440,119.20 and 115,828.40

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Solution

The fourth proportional to 293,315.60, 440,119.20 and 115,828.40 is: 173,800.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,315.60 : 440,119.20 = 115,828.40 : x
  2. Step 2: Convert to fraction form
    293,315.60/440,119.20 = 115,828.40/x
  3. Step 3: Cross multiply
    293,315.60x = 440,119.20 × 115,828.40
  4. Step 4: Simplify right side
    293,315.60x = 50,978,302,745.28
  5. Step 5: Solve for x
    x = 50,978,302,745.28/293,315.60
  6. Step 6: Final answer
    x = 173,800.18

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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.