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Finding the Fourth Proportional to 144,878.56, 217,361.20 and 97,682.88

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Solution

The fourth proportional to 144,878.56, 217,361.20 and 97,682.88 is: 146,553.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,878.56 : 217,361.20 = 97,682.88 : x
  2. Step 2: Convert to fraction form
    144,878.56/217,361.20 = 97,682.88/x
  3. Step 3: Cross multiply
    144,878.56x = 217,361.20 × 97,682.88
  4. Step 4: Simplify right side
    144,878.56x = 21,232,468,016.26
  5. Step 5: Solve for x
    x = 21,232,468,016.26/144,878.56
  6. Step 6: Final answer
    x = 146,553.56

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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.