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Finding the Fourth Proportional to 160,872.48, 241,388.64 and 72,188.64

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Solution

The fourth proportional to 160,872.48, 241,388.64 and 72,188.64 is: 108,318.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,872.48 : 241,388.64 = 72,188.64 : x
  2. Step 2: Convert to fraction form
    160,872.48/241,388.64 = 72,188.64/x
  3. Step 3: Cross multiply
    160,872.48x = 241,388.64 × 72,188.64
  4. Step 4: Simplify right side
    160,872.48x = 17,425,517,633.05
  5. Step 5: Solve for x
    x = 17,425,517,633.05/160,872.48
  6. Step 6: Final answer
    x = 108,318.82

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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.