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Finding the Fourth Proportional to 98,844.40, 148,266.60 and 89,804.80

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Solution

The fourth proportional to 98,844.40, 148,266.60 and 89,804.80 is: 134,707.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,844.40 : 148,266.60 = 89,804.80 : x
  2. Step 2: Convert to fraction form
    98,844.40/148,266.60 = 89,804.80/x
  3. Step 3: Cross multiply
    98,844.40x = 148,266.60 × 89,804.80
  4. Step 4: Simplify right side
    98,844.40x = 13,315,052,359.68
  5. Step 5: Solve for x
    x = 13,315,052,359.68/98,844.40
  6. Step 6: Final answer
    x = 134,707.20

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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.