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Finding the Fourth Proportional to 108,004.80, 162,007.20 and 37,858.80

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Solution

The fourth proportional to 108,004.80, 162,007.20 and 37,858.80 is: 56,788.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,004.80 : 162,007.20 = 37,858.80 : x
  2. Step 2: Convert to fraction form
    108,004.80/162,007.20 = 37,858.80/x
  3. Step 3: Cross multiply
    108,004.80x = 162,007.20 × 37,858.80
  4. Step 4: Simplify right side
    108,004.80x = 6,133,398,183.36
  5. Step 5: Solve for x
    x = 6,133,398,183.36/108,004.80
  6. Step 6: Final answer
    x = 56,788.20

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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.