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Finding the Fourth Proportional to 323,139.08, 484,782.33 and 98,519.60

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Solution

The fourth proportional to 323,139.08, 484,782.33 and 98,519.60 is: 147,801.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,139.08 : 484,782.33 = 98,519.60 : x
  2. Step 2: Convert to fraction form
    323,139.08/484,782.33 = 98,519.60/x
  3. Step 3: Cross multiply
    323,139.08x = 484,782.33 × 98,519.60
  4. Step 4: Simplify right side
    323,139.08x = 47,760,561,238.67
  5. Step 5: Solve for x
    x = 47,760,561,238.67/323,139.08
  6. Step 6: Final answer
    x = 147,801.87

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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.