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Finding the Fourth Proportional to 174,426, 261,678 and 63,618

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Solution

The fourth proportional to 174,426, 261,678 and 63,618 is: 95,441.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,426 : 261,678 = 63,618 : x
  2. Step 2: Convert to fraction form
    174,426/261,678 = 63,618/x
  3. Step 3: Cross multiply
    174,426x = 261,678 × 63,618
  4. Step 4: Simplify right side
    174,426x = 16,647,431,004
  5. Step 5: Solve for x
    x = 16,647,431,004/174,426
  6. Step 6: Final answer
    x = 95,441.22

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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.