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Finding the Fourth Proportional to 293,409.20, 440,113.80 and 200,097.20

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Solution

The fourth proportional to 293,409.20, 440,113.80 and 200,097.20 is: 300,145.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,409.20 : 440,113.80 = 200,097.20 : x
  2. Step 2: Convert to fraction form
    293,409.20/440,113.80 = 200,097.20/x
  3. Step 3: Cross multiply
    293,409.20x = 440,113.80 × 200,097.20
  4. Step 4: Simplify right side
    293,409.20x = 88,065,539,061.36
  5. Step 5: Solve for x
    x = 88,065,539,061.36/293,409.20
  6. Step 6: Final answer
    x = 300,145.80

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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.