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Finding the Fourth Proportional to 307,986.18, 461,995.83 and 97,640.52

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Solution

The fourth proportional to 307,986.18, 461,995.83 and 97,640.52 is: 146,466.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,986.18 : 461,995.83 = 97,640.52 : x
  2. Step 2: Convert to fraction form
    307,986.18/461,995.83 = 97,640.52/x
  3. Step 3: Cross multiply
    307,986.18x = 461,995.83 × 97,640.52
  4. Step 4: Simplify right side
    307,986.18x = 45,109,513,079.03
  5. Step 5: Solve for x
    x = 45,109,513,079.03/307,986.18
  6. Step 6: Final answer
    x = 146,466.03

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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.