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Finding the Fourth Proportional to 98,844.40, 148,266.60 and 54,448.30

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Solution

The fourth proportional to 98,844.40, 148,266.60 and 54,448.30 is: 81,672.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,844.40 : 148,266.60 = 54,448.30 : x
  2. Step 2: Convert to fraction form
    98,844.40/148,266.60 = 54,448.30/x
  3. Step 3: Cross multiply
    98,844.40x = 148,266.60 × 54,448.30
  4. Step 4: Simplify right side
    98,844.40x = 8,072,864,316.78
  5. Step 5: Solve for x
    x = 8,072,864,316.78/98,844.40
  6. Step 6: Final answer
    x = 81,672.45

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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.