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Finding the Fourth Proportional to 91,112.44, 125,735.30 and 52,879.45

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Solution

The fourth proportional to 91,112.44, 125,735.30 and 52,879.45 is: 72,973.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,112.44 : 125,735.30 = 52,879.45 : x
  2. Step 2: Convert to fraction form
    91,112.44/125,735.30 = 52,879.45/x
  3. Step 3: Cross multiply
    91,112.44x = 125,735.30 × 52,879.45
  4. Step 4: Simplify right side
    91,112.44x = 6,648,813,245.19
  5. Step 5: Solve for x
    x = 6,648,813,245.19/91,112.44
  6. Step 6: Final answer
    x = 72,973.72

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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.