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Finding the Fourth Proportional to 247,443.21, 371,144.66 and 69,945.93

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Solution

The fourth proportional to 247,443.21, 371,144.66 and 69,945.93 is: 104,913.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,443.21 : 371,144.66 = 69,945.93 : x
  2. Step 2: Convert to fraction form
    247,443.21/371,144.66 = 69,945.93/x
  3. Step 3: Cross multiply
    247,443.21x = 371,144.66 × 69,945.93
  4. Step 4: Simplify right side
    247,443.21x = 25,960,058,058.50
  5. Step 5: Solve for x
    x = 25,960,058,058.50/247,443.21
  6. Step 6: Final answer
    x = 104,913.20

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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.