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Finding the Fourth Proportional to 299,653.40, 449,480.10 and 122,063.60

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Solution

The fourth proportional to 299,653.40, 449,480.10 and 122,063.60 is: 183,095.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,653.40 : 449,480.10 = 122,063.60 : x
  2. Step 2: Convert to fraction form
    299,653.40/449,480.10 = 122,063.60/x
  3. Step 3: Cross multiply
    299,653.40x = 449,480.10 × 122,063.60
  4. Step 4: Simplify right side
    299,653.40x = 54,865,159,134.36
  5. Step 5: Solve for x
    x = 54,865,159,134.36/299,653.40
  6. Step 6: Final answer
    x = 183,095.40

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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.