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Finding the Fourth Proportional to 170,892.64, 256,338.95 and 111,778.03

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Solution

The fourth proportional to 170,892.64, 256,338.95 and 111,778.03 is: 167,667.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,892.64 : 256,338.95 = 111,778.03 : x
  2. Step 2: Convert to fraction form
    170,892.64/256,338.95 = 111,778.03/x
  3. Step 3: Cross multiply
    170,892.64x = 256,338.95 × 111,778.03
  4. Step 4: Simplify right side
    170,892.64x = 28,653,062,106.02
  5. Step 5: Solve for x
    x = 28,653,062,106.02/170,892.64
  6. Step 6: Final answer
    x = 167,667.04

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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.