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Finding the Fourth Proportional to 120,212.60, 179,973.30 and 73,556.60

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Solution

The fourth proportional to 120,212.60, 179,973.30 and 73,556.60 is: 110,123.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,212.60 : 179,973.30 = 73,556.60 : x
  2. Step 2: Convert to fraction form
    120,212.60/179,973.30 = 73,556.60/x
  3. Step 3: Cross multiply
    120,212.60x = 179,973.30 × 73,556.60
  4. Step 4: Simplify right side
    120,212.60x = 13,238,224,038.78
  5. Step 5: Solve for x
    x = 13,238,224,038.78/120,212.60
  6. Step 6: Final answer
    x = 110,123.43

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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.