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Finding the Fourth Proportional to 170,858.80, 256,288.20 and 161,017.30

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Solution

The fourth proportional to 170,858.80, 256,288.20 and 161,017.30 is: 241,525.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,858.80 : 256,288.20 = 161,017.30 : x
  2. Step 2: Convert to fraction form
    170,858.80/256,288.20 = 161,017.30/x
  3. Step 3: Cross multiply
    170,858.80x = 256,288.20 × 161,017.30
  4. Step 4: Simplify right side
    170,858.80x = 41,266,833,985.86
  5. Step 5: Solve for x
    x = 41,266,833,985.86/170,858.80
  6. Step 6: Final answer
    x = 241,525.95

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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.