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Finding the Fourth Proportional to 307,807.20, 461,652.48 and 108,080.64

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Solution

The fourth proportional to 307,807.20, 461,652.48 and 108,080.64 is: 162,100.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,807.20 : 461,652.48 = 108,080.64 : x
  2. Step 2: Convert to fraction form
    307,807.20/461,652.48 = 108,080.64/x
  3. Step 3: Cross multiply
    307,807.20x = 461,652.48 × 108,080.64
  4. Step 4: Simplify right side
    307,807.20x = 49,895,695,495.99
  5. Step 5: Solve for x
    x = 49,895,695,495.99/307,807.20
  6. Step 6: Final answer
    x = 162,100.48

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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.