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Finding the Fourth Proportional to 98,461.20, 147,540.60 and 73,383.60

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Solution

The fourth proportional to 98,461.20, 147,540.60 and 73,383.60 is: 109,962.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,461.20 : 147,540.60 = 73,383.60 : x
  2. Step 2: Convert to fraction form
    98,461.20/147,540.60 = 73,383.60/x
  3. Step 3: Cross multiply
    98,461.20x = 147,540.60 × 73,383.60
  4. Step 4: Simplify right side
    98,461.20x = 10,827,060,374.16
  5. Step 5: Solve for x
    x = 10,827,060,374.16/98,461.20
  6. Step 6: Final answer
    x = 109,962.71

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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.