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Finding the Fourth Proportional to 112,728.10, 169,100.36 and 37,847.62

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Solution

The fourth proportional to 112,728.10, 169,100.36 and 37,847.62 is: 56,774.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,728.10 : 169,100.36 = 37,847.62 : x
  2. Step 2: Convert to fraction form
    112,728.10/169,100.36 = 37,847.62/x
  3. Step 3: Cross multiply
    112,728.10x = 169,100.36 × 37,847.62
  4. Step 4: Simplify right side
    112,728.10x = 6,400,045,321.64
  5. Step 5: Solve for x
    x = 6,400,045,321.64/112,728.10
  6. Step 6: Final answer
    x = 56,774.18

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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.