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Finding the Fourth Proportional to 300,739.04, 451,209.27 and 98,344.48

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Solution

The fourth proportional to 300,739.04, 451,209.27 and 98,344.48 is: 147,549.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,739.04 : 451,209.27 = 98,344.48 : x
  2. Step 2: Convert to fraction form
    300,739.04/451,209.27 = 98,344.48/x
  3. Step 3: Cross multiply
    300,739.04x = 451,209.27 × 98,344.48
  4. Step 4: Simplify right side
    300,739.04x = 44,373,939,532.51
  5. Step 5: Solve for x
    x = 44,373,939,532.51/300,739.04
  6. Step 6: Final answer
    x = 147,549.65

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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.