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Finding the Fourth Proportional to 166,491, 249,736.74 and 67,995

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Solution

The fourth proportional to 166,491, 249,736.74 and 67,995 is: 101,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,491 : 249,736.74 = 67,995 : x
  2. Step 2: Convert to fraction form
    166,491/249,736.74 = 67,995/x
  3. Step 3: Cross multiply
    166,491x = 249,736.74 × 67,995
  4. Step 4: Simplify right side
    166,491x = 16,980,849,636.30
  5. Step 5: Solve for x
    x = 16,980,849,636.30/166,491
  6. Step 6: Final answer
    x = 101,992.60

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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.