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Finding the Fourth Proportional to 120,558.86, 166,372.00 and 69,573.74

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Solution

The fourth proportional to 120,558.86, 166,372.00 and 69,573.74 is: 96,012.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,558.86 : 166,372.00 = 69,573.74 : x
  2. Step 2: Convert to fraction form
    120,558.86/166,372.00 = 69,573.74/x
  3. Step 3: Cross multiply
    120,558.86x = 166,372.00 × 69,573.74
  4. Step 4: Simplify right side
    120,558.86x = 11,575,121,461.16
  5. Step 5: Solve for x
    x = 11,575,121,461.16/120,558.86
  6. Step 6: Final answer
    x = 96,012.20

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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.