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Finding the Fourth Proportional to 247,739.61, 371,617.13 and 117,879.96

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Solution

The fourth proportional to 247,739.61, 371,617.13 and 117,879.96 is: 176,823.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,739.61 : 371,617.13 = 117,879.96 : x
  2. Step 2: Convert to fraction form
    247,739.61/371,617.13 = 117,879.96/x
  3. Step 3: Cross multiply
    247,739.61x = 371,617.13 × 117,879.96
  4. Step 4: Simplify right side
    247,739.61x = 43,806,212,419.71
  5. Step 5: Solve for x
    x = 43,806,212,419.71/247,739.61
  6. Step 6: Final answer
    x = 176,823.61

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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.