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Finding the Fourth Proportional to 165,715.70, 248,573.55 and 161,107.70

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Solution

The fourth proportional to 165,715.70, 248,573.55 and 161,107.70 is: 241,661.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,715.70 : 248,573.55 = 161,107.70 : x
  2. Step 2: Convert to fraction form
    165,715.70/248,573.55 = 161,107.70/x
  3. Step 3: Cross multiply
    165,715.70x = 248,573.55 × 161,107.70
  4. Step 4: Simplify right side
    165,715.70x = 40,047,112,921.34
  5. Step 5: Solve for x
    x = 40,047,112,921.34/165,715.70
  6. Step 6: Final answer
    x = 241,661.55

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1.5x scale

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.