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Finding the Fourth Proportional to 171,903.30, 257,853.51 and 66,796.26

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Solution

The fourth proportional to 171,903.30, 257,853.51 and 66,796.26 is: 100,193.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,903.30 : 257,853.51 = 66,796.26 : x
  2. Step 2: Convert to fraction form
    171,903.30/257,853.51 = 66,796.26/x
  3. Step 3: Cross multiply
    171,903.30x = 257,853.51 × 66,796.26
  4. Step 4: Simplify right side
    171,903.30x = 17,223,650,095.87
  5. Step 5: Solve for x
    x = 17,223,650,095.87/171,903.30
  6. Step 6: Final answer
    x = 100,193.83

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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.