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Finding the Fourth Proportional to 149,492.88, 224,213.40 and 55,979.28

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Solution

The fourth proportional to 149,492.88, 224,213.40 and 55,979.28 is: 83,959.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,492.88 : 224,213.40 = 55,979.28 : x
  2. Step 2: Convert to fraction form
    149,492.88/224,213.40 = 55,979.28/x
  3. Step 3: Cross multiply
    149,492.88x = 224,213.40 × 55,979.28
  4. Step 4: Simplify right side
    149,492.88x = 12,551,304,698.35
  5. Step 5: Solve for x
    x = 12,551,304,698.35/149,492.88
  6. Step 6: Final answer
    x = 83,959.21

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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.