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Finding the Fourth Proportional to 368,532.63, 552,797.12 and 143,915.88

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Solution

The fourth proportional to 368,532.63, 552,797.12 and 143,915.88 is: 215,873.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,532.63 : 552,797.12 = 143,915.88 : x
  2. Step 2: Convert to fraction form
    368,532.63/552,797.12 = 143,915.88/x
  3. Step 3: Cross multiply
    368,532.63x = 552,797.12 × 143,915.88
  4. Step 4: Simplify right side
    368,532.63x = 79,556,283,266.69
  5. Step 5: Solve for x
    x = 79,556,283,266.69/368,532.63
  6. Step 6: Final answer
    x = 215,873.11

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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.