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Finding the Fourth Proportional to 115,289.88, 172,943.73 and 44,246.54

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Solution

The fourth proportional to 115,289.88, 172,943.73 and 44,246.54 is: 66,373.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,289.88 : 172,943.73 = 44,246.54 : x
  2. Step 2: Convert to fraction form
    115,289.88/172,943.73 = 44,246.54/x
  3. Step 3: Cross multiply
    115,289.88x = 172,943.73 × 44,246.54
  4. Step 4: Simplify right side
    115,289.88x = 7,652,160,802.48
  5. Step 5: Solve for x
    x = 7,652,160,802.48/115,289.88
  6. Step 6: Final answer
    x = 66,373.22

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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.