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Finding the Fourth Proportional to 117,486.55, 162,057.54 and 69,706

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Solution

The fourth proportional to 117,486.55, 162,057.54 and 69,706 is: 96,150.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,486.55 : 162,057.54 = 69,706 : x
  2. Step 2: Convert to fraction form
    117,486.55/162,057.54 = 69,706/x
  3. Step 3: Cross multiply
    117,486.55x = 162,057.54 × 69,706
  4. Step 4: Simplify right side
    117,486.55x = 11,296,382,883.24
  5. Step 5: Solve for x
    x = 11,296,382,883.24/117,486.55
  6. Step 6: Final answer
    x = 96,150.43

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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.