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Finding the Fourth Proportional to 72,895.80, 100,557.84 and 50,195.44

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Solution

The fourth proportional to 72,895.80, 100,557.84 and 50,195.44 is: 69,243.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,895.80 : 100,557.84 = 50,195.44 : x
  2. Step 2: Convert to fraction form
    72,895.80/100,557.84 = 50,195.44/x
  3. Step 3: Cross multiply
    72,895.80x = 100,557.84 × 50,195.44
  4. Step 4: Simplify right side
    72,895.80x = 5,047,545,024.25
  5. Step 5: Solve for x
    x = 5,047,545,024.25/72,895.80
  6. Step 6: Final answer
    x = 69,243.29

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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.