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Finding the Fourth Proportional to 92,069.56, 127,059.78 and 51,785.20

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Solution

The fourth proportional to 92,069.56, 127,059.78 and 51,785.20 is: 71,465.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,069.56 : 127,059.78 = 51,785.20 : x
  2. Step 2: Convert to fraction form
    92,069.56/127,059.78 = 51,785.20/x
  3. Step 3: Cross multiply
    92,069.56x = 127,059.78 × 51,785.20
  4. Step 4: Simplify right side
    92,069.56x = 6,579,816,119.26
  5. Step 5: Solve for x
    x = 6,579,816,119.26/92,069.56
  6. Step 6: Final answer
    x = 71,465.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.