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Finding the Fourth Proportional to 240,613.20, 360,968.40 and 82,857.60

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Solution

The fourth proportional to 240,613.20, 360,968.40 and 82,857.60 is: 124,303.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,613.20 : 360,968.40 = 82,857.60 : x
  2. Step 2: Convert to fraction form
    240,613.20/360,968.40 = 82,857.60/x
  3. Step 3: Cross multiply
    240,613.20x = 360,968.40 × 82,857.60
  4. Step 4: Simplify right side
    240,613.20x = 29,908,975,299.84
  5. Step 5: Solve for x
    x = 29,908,975,299.84/240,613.20
  6. Step 6: Final answer
    x = 124,303.14

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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.