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Finding the Fourth Proportional to 166,968, 250,466.58 and 42,309

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Solution

The fourth proportional to 166,968, 250,466.58 and 42,309 is: 63,467.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,968 : 250,466.58 = 42,309 : x
  2. Step 2: Convert to fraction form
    166,968/250,466.58 = 42,309/x
  3. Step 3: Cross multiply
    166,968x = 250,466.58 × 42,309
  4. Step 4: Simplify right side
    166,968x = 10,596,990,533.22
  5. Step 5: Solve for x
    x = 10,596,990,533.22/166,968
  6. Step 6: Final answer
    x = 63,467.19

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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.