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Finding the Fourth Proportional to 170,726.80, 256,381.80 and 111,823.60

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Solution

The fourth proportional to 170,726.80, 256,381.80 and 111,823.60 is: 167,926.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,726.80 : 256,381.80 = 111,823.60 : x
  2. Step 2: Convert to fraction form
    170,726.80/256,381.80 = 111,823.60/x
  3. Step 3: Cross multiply
    170,726.80x = 256,381.80 × 111,823.60
  4. Step 4: Simplify right side
    170,726.80x = 28,669,535,850.48
  5. Step 5: Solve for x
    x = 28,669,535,850.48/170,726.80
  6. Step 6: Final answer
    x = 167,926.39

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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.