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Finding the Fourth Proportional to 307,633.20, 461,363.40 and 97,335.60

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Solution

The fourth proportional to 307,633.20, 461,363.40 and 97,335.60 is: 145,976.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,633.20 : 461,363.40 = 97,335.60 : x
  2. Step 2: Convert to fraction form
    307,633.20/461,363.40 = 97,335.60/x
  3. Step 3: Cross multiply
    307,633.20x = 461,363.40 × 97,335.60
  4. Step 4: Simplify right side
    307,633.20x = 44,907,083,357.04
  5. Step 5: Solve for x
    x = 44,907,083,357.04/307,633.20
  6. Step 6: Final answer
    x = 145,976.06

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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.