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Finding the Fourth Proportional to 215,065.44, 322,651.08 and 74,825.28

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Solution

The fourth proportional to 215,065.44, 322,651.08 and 74,825.28 is: 112,256.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,065.44 : 322,651.08 = 74,825.28 : x
  2. Step 2: Convert to fraction form
    215,065.44/322,651.08 = 74,825.28/x
  3. Step 3: Cross multiply
    215,065.44x = 322,651.08 × 74,825.28
  4. Step 4: Simplify right side
    215,065.44x = 24,142,457,403.30
  5. Step 5: Solve for x
    x = 24,142,457,403.30/215,065.44
  6. Step 6: Final answer
    x = 112,256.33

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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.