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Finding the Fourth Proportional to 162,388.80, 243,583.20 and 44,074.80

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Solution

The fourth proportional to 162,388.80, 243,583.20 and 44,074.80 is: 66,112.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,388.80 : 243,583.20 = 44,074.80 : x
  2. Step 2: Convert to fraction form
    162,388.80/243,583.20 = 44,074.80/x
  3. Step 3: Cross multiply
    162,388.80x = 243,583.20 × 44,074.80
  4. Step 4: Simplify right side
    162,388.80x = 10,735,880,823.36
  5. Step 5: Solve for x
    x = 10,735,880,823.36/162,388.80
  6. Step 6: Final answer
    x = 66,112.20

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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.