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Finding the Fourth Proportional to 117,777, 162,532.26 and 67,505.16

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Solution

The fourth proportional to 117,777, 162,532.26 and 67,505.16 is: 93,157.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,777 : 162,532.26 = 67,505.16 : x
  2. Step 2: Convert to fraction form
    117,777/162,532.26 = 67,505.16/x
  3. Step 3: Cross multiply
    117,777x = 162,532.26 × 67,505.16
  4. Step 4: Simplify right side
    117,777x = 10,971,766,216.46
  5. Step 5: Solve for x
    x = 10,971,766,216.46/117,777
  6. Step 6: Final answer
    x = 93,157.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.