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Finding the Fourth Proportional to 104,615.90, 156,923.85 and 73,123.10

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Solution

The fourth proportional to 104,615.90, 156,923.85 and 73,123.10 is: 109,684.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,615.90 : 156,923.85 = 73,123.10 : x
  2. Step 2: Convert to fraction form
    104,615.90/156,923.85 = 73,123.10/x
  3. Step 3: Cross multiply
    104,615.90x = 156,923.85 × 73,123.10
  4. Step 4: Simplify right side
    104,615.90x = 11,474,758,375.94
  5. Step 5: Solve for x
    x = 11,474,758,375.94/104,615.90
  6. Step 6: Final answer
    x = 109,684.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.