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Finding the Fourth Proportional to 110,892.60, 166,338.90 and 40,762.80

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Solution

The fourth proportional to 110,892.60, 166,338.90 and 40,762.80 is: 61,144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,892.60 : 166,338.90 = 40,762.80 : x
  2. Step 2: Convert to fraction form
    110,892.60/166,338.90 = 40,762.80/x
  3. Step 3: Cross multiply
    110,892.60x = 166,338.90 × 40,762.80
  4. Step 4: Simplify right side
    110,892.60x = 6,780,439,312.92
  5. Step 5: Solve for x
    x = 6,780,439,312.92/110,892.60
  6. Step 6: Final answer
    x = 61,144.20

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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.