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Finding the Fourth Proportional to 101,512.94, 140,085.83 and 56,190.91

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Solution

The fourth proportional to 101,512.94, 140,085.83 and 56,190.91 is: 77,542.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,512.94 : 140,085.83 = 56,190.91 : x
  2. Step 2: Convert to fraction form
    101,512.94/140,085.83 = 56,190.91/x
  3. Step 3: Cross multiply
    101,512.94x = 140,085.83 × 56,190.91
  4. Step 4: Simplify right side
    101,512.94x = 7,871,549,984.85
  5. Step 5: Solve for x
    x = 7,871,549,984.85/101,512.94
  6. Step 6: Final answer
    x = 77,542.33

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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.