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Finding the Fourth Proportional to 101,944.57, 140,683.50 and 57,232.57

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Solution

The fourth proportional to 101,944.57, 140,683.50 and 57,232.57 is: 78,980.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,944.57 : 140,683.50 = 57,232.57 : x
  2. Step 2: Convert to fraction form
    101,944.57/140,683.50 = 57,232.57/x
  3. Step 3: Cross multiply
    101,944.57x = 140,683.50 × 57,232.57
  4. Step 4: Simplify right side
    101,944.57x = 8,051,678,261.60
  5. Step 5: Solve for x
    x = 8,051,678,261.60/101,944.57
  6. Step 6: Final answer
    x = 78,980.94

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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.