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Finding the Fourth Proportional to 180,888.84, 271,322.30 and 81,022.23

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Solution

The fourth proportional to 180,888.84, 271,322.30 and 81,022.23 is: 121,528.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,888.84 : 271,322.30 = 81,022.23 : x
  2. Step 2: Convert to fraction form
    180,888.84/271,322.30 = 81,022.23/x
  3. Step 3: Cross multiply
    180,888.84x = 271,322.30 × 81,022.23
  4. Step 4: Simplify right side
    180,888.84x = 21,983,137,389.62
  5. Step 5: Solve for x
    x = 21,983,137,389.62/180,888.84
  6. Step 6: Final answer
    x = 121,528.43

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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.