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Finding the Fourth Proportional to 170,862.80, 256,553.40 and 131,464.40

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Solution

The fourth proportional to 170,862.80, 256,553.40 and 131,464.40 is: 197,396.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,862.80 : 256,553.40 = 131,464.40 : x
  2. Step 2: Convert to fraction form
    170,862.80/256,553.40 = 131,464.40/x
  3. Step 3: Cross multiply
    170,862.80x = 256,553.40 × 131,464.40
  4. Step 4: Simplify right side
    170,862.80x = 33,727,638,798.96
  5. Step 5: Solve for x
    x = 33,727,638,798.96/170,862.80
  6. Step 6: Final answer
    x = 197,396.03

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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.