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Finding the Fourth Proportional to 87,296.94, 120,485.46 and 51,484.86

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Solution

The fourth proportional to 87,296.94, 120,485.46 and 51,484.86 is: 71,058.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,296.94 : 120,485.46 = 51,484.86 : x
  2. Step 2: Convert to fraction form
    87,296.94/120,485.46 = 51,484.86/x
  3. Step 3: Cross multiply
    87,296.94x = 120,485.46 × 51,484.86
  4. Step 4: Simplify right side
    87,296.94x = 6,203,177,040.14
  5. Step 5: Solve for x
    x = 6,203,177,040.14/87,296.94
  6. Step 6: Final answer
    x = 71,058.36

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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.