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Finding the Fourth Proportional to 188,533.49, 283,005.17 and 76,290.98

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Solution

The fourth proportional to 188,533.49, 283,005.17 and 76,290.98 is: 114,519.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,533.49 : 283,005.17 = 76,290.98 : x
  2. Step 2: Convert to fraction form
    188,533.49/283,005.17 = 76,290.98/x
  3. Step 3: Cross multiply
    188,533.49x = 283,005.17 × 76,290.98
  4. Step 4: Simplify right side
    188,533.49x = 21,590,741,382.91
  5. Step 5: Solve for x
    x = 21,590,741,382.91/188,533.49
  6. Step 6: Final answer
    x = 114,519.40

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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.