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Finding the Fourth Proportional to 299,305.51, 449,040.28 and 149,364.79

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Solution

The fourth proportional to 299,305.51, 449,040.28 and 149,364.79 is: 224,088.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,305.51 : 449,040.28 = 149,364.79 : x
  2. Step 2: Convert to fraction form
    299,305.51/449,040.28 = 149,364.79/x
  3. Step 3: Cross multiply
    299,305.51x = 449,040.28 × 149,364.79
  4. Step 4: Simplify right side
    299,305.51x = 67,070,807,123.74
  5. Step 5: Solve for x
    x = 67,070,807,123.74/299,305.51
  6. Step 6: Final answer
    x = 224,088.11

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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.