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Finding the Fourth Proportional to 107,846.20, 161,842.20 and 60,461.20

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Solution

The fourth proportional to 107,846.20, 161,842.20 and 60,461.20 is: 90,732.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,846.20 : 161,842.20 = 60,461.20 : x
  2. Step 2: Convert to fraction form
    107,846.20/161,842.20 = 60,461.20/x
  3. Step 3: Cross multiply
    107,846.20x = 161,842.20 × 60,461.20
  4. Step 4: Simplify right side
    107,846.20x = 9,785,173,622.64
  5. Step 5: Solve for x
    x = 9,785,173,622.64/107,846.20
  6. Step 6: Final answer
    x = 90,732.67

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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.