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Finding the Fourth Proportional to 293,618.40, 440,542.80 and 106,648.80

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Solution

The fourth proportional to 293,618.40, 440,542.80 and 106,648.80 is: 160,015.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,618.40 : 440,542.80 = 106,648.80 : x
  2. Step 2: Convert to fraction form
    293,618.40/440,542.80 = 106,648.80/x
  3. Step 3: Cross multiply
    293,618.40x = 440,542.80 × 106,648.80
  4. Step 4: Simplify right side
    293,618.40x = 46,983,360,968.64
  5. Step 5: Solve for x
    x = 46,983,360,968.64/293,618.40
  6. Step 6: Final answer
    x = 160,015.04

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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.