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Finding the Fourth Proportional to 72,552.08, 100,126.36 and 48,311.48

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Solution

The fourth proportional to 72,552.08, 100,126.36 and 48,311.48 is: 66,672.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,552.08 : 100,126.36 = 48,311.48 : x
  2. Step 2: Convert to fraction form
    72,552.08/100,126.36 = 48,311.48/x
  3. Step 3: Cross multiply
    72,552.08x = 100,126.36 × 48,311.48
  4. Step 4: Simplify right side
    72,552.08x = 4,837,252,949.32
  5. Step 5: Solve for x
    x = 4,837,252,949.32/72,552.08
  6. Step 6: Final answer
    x = 66,672.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.