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Finding the Fourth Proportional to 247,116.40, 370,674.60 and 162,989.80

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Solution

The fourth proportional to 247,116.40, 370,674.60 and 162,989.80 is: 244,484.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,116.40 : 370,674.60 = 162,989.80 : x
  2. Step 2: Convert to fraction form
    247,116.40/370,674.60 = 162,989.80/x
  3. Step 3: Cross multiply
    247,116.40x = 370,674.60 × 162,989.80
  4. Step 4: Simplify right side
    247,116.40x = 60,416,178,919.08
  5. Step 5: Solve for x
    x = 60,416,178,919.08/247,116.40
  6. Step 6: Final answer
    x = 244,484.70

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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.