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Finding the Fourth Proportional to 247,803.70, 371,673.71 and 79,309.93

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Solution

The fourth proportional to 247,803.70, 371,673.71 and 79,309.93 is: 118,954.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,803.70 : 371,673.71 = 79,309.93 : x
  2. Step 2: Convert to fraction form
    247,803.70/371,673.71 = 79,309.93/x
  3. Step 3: Cross multiply
    247,803.70x = 371,673.71 × 79,309.93
  4. Step 4: Simplify right side
    247,803.70x = 29,477,414,064.57
  5. Step 5: Solve for x
    x = 29,477,414,064.57/247,803.70
  6. Step 6: Final answer
    x = 118,954.70

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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.