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Finding the Fourth Proportional to 299,532.48, 449,148.48 and 99,782.64

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Solution

The fourth proportional to 299,532.48, 449,148.48 and 99,782.64 is: 149,623.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,532.48 : 449,148.48 = 99,782.64 : x
  2. Step 2: Convert to fraction form
    299,532.48/449,148.48 = 99,782.64/x
  3. Step 3: Cross multiply
    299,532.48x = 449,148.48 × 99,782.64
  4. Step 4: Simplify right side
    299,532.48x = 44,817,221,086.39
  5. Step 5: Solve for x
    x = 44,817,221,086.39/299,532.48
  6. Step 6: Final answer
    x = 149,623.91

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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.