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Finding the Fourth Proportional to 174,047.40, 260,898.30 and 80,389.80

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Solution

The fourth proportional to 174,047.40, 260,898.30 and 80,389.80 is: 120,504.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,047.40 : 260,898.30 = 80,389.80 : x
  2. Step 2: Convert to fraction form
    174,047.40/260,898.30 = 80,389.80/x
  3. Step 3: Cross multiply
    174,047.40x = 260,898.30 × 80,389.80
  4. Step 4: Simplify right side
    174,047.40x = 20,973,562,157.34
  5. Step 5: Solve for x
    x = 20,973,562,157.34/174,047.40
  6. Step 6: Final answer
    x = 120,504.89

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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.