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Finding the Fourth Proportional to 100,312.40, 150,509.10 and 44,163.20

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Solution

The fourth proportional to 100,312.40, 150,509.10 and 44,163.20 is: 66,262.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,312.40 : 150,509.10 = 44,163.20 : x
  2. Step 2: Convert to fraction form
    100,312.40/150,509.10 = 44,163.20/x
  3. Step 3: Cross multiply
    100,312.40x = 150,509.10 × 44,163.20
  4. Step 4: Simplify right side
    100,312.40x = 6,646,963,485.12
  5. Step 5: Solve for x
    x = 6,646,963,485.12/100,312.40
  6. Step 6: Final answer
    x = 66,262.63

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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.