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Finding the Fourth Proportional to 300,739.50, 450,759.33 and 123,031.17

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Solution

The fourth proportional to 300,739.50, 450,759.33 and 123,031.17 is: 184,403.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,739.50 : 450,759.33 = 123,031.17 : x
  2. Step 2: Convert to fraction form
    300,739.50/450,759.33 = 123,031.17/x
  3. Step 3: Cross multiply
    300,739.50x = 450,759.33 × 123,031.17
  4. Step 4: Simplify right side
    300,739.50x = 55,457,447,758.32
  5. Step 5: Solve for x
    x = 55,457,447,758.32/300,739.50
  6. Step 6: Final answer
    x = 184,403.60

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1.5x scale

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.