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Finding the Fourth Proportional to 181,520.40, 272,280.60 and 106,676.40

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Solution

The fourth proportional to 181,520.40, 272,280.60 and 106,676.40 is: 160,014.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,520.40 : 272,280.60 = 106,676.40 : x
  2. Step 2: Convert to fraction form
    181,520.40/272,280.60 = 106,676.40/x
  3. Step 3: Cross multiply
    181,520.40x = 272,280.60 × 106,676.40
  4. Step 4: Simplify right side
    181,520.40x = 29,045,914,197.84
  5. Step 5: Solve for x
    x = 29,045,914,197.84/181,520.40
  6. Step 6: Final answer
    x = 160,014.60

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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.