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Finding the Fourth Proportional to 247,274.98, 370,908.38 and 78,793.02

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Solution

The fourth proportional to 247,274.98, 370,908.38 and 78,793.02 is: 118,188.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,274.98 : 370,908.38 = 78,793.02 : x
  2. Step 2: Convert to fraction form
    247,274.98/370,908.38 = 78,793.02/x
  3. Step 3: Cross multiply
    247,274.98x = 370,908.38 × 78,793.02
  4. Step 4: Simplify right side
    247,274.98x = 29,224,991,403.51
  5. Step 5: Solve for x
    x = 29,224,991,403.51/247,274.98
  6. Step 6: Final answer
    x = 118,188.23

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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.