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Finding the Fourth Proportional to 201,688.80, 302,533.20 and 196,504.80

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Solution

The fourth proportional to 201,688.80, 302,533.20 and 196,504.80 is: 294,757.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,688.80 : 302,533.20 = 196,504.80 : x
  2. Step 2: Convert to fraction form
    201,688.80/302,533.20 = 196,504.80/x
  3. Step 3: Cross multiply
    201,688.80x = 302,533.20 × 196,504.80
  4. Step 4: Simplify right side
    201,688.80x = 59,449,225,959.36
  5. Step 5: Solve for x
    x = 59,449,225,959.36/201,688.80
  6. Step 6: Final answer
    x = 294,757.20

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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.