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Finding the Fourth Proportional to 201,732.40, 302,598.60 and 68,762.80

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Solution

The fourth proportional to 201,732.40, 302,598.60 and 68,762.80 is: 103,144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,732.40 : 302,598.60 = 68,762.80 : x
  2. Step 2: Convert to fraction form
    201,732.40/302,598.60 = 68,762.80/x
  3. Step 3: Cross multiply
    201,732.40x = 302,598.60 × 68,762.80
  4. Step 4: Simplify right side
    201,732.40x = 20,807,527,012.08
  5. Step 5: Solve for x
    x = 20,807,527,012.08/201,732.40
  6. Step 6: Final answer
    x = 103,144.20

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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.