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Finding the Fourth Proportional to 91,245.78, 125,922.76 and 52,483.52

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Solution

The fourth proportional to 91,245.78, 125,922.76 and 52,483.52 is: 72,429.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,245.78 : 125,922.76 = 52,483.52 : x
  2. Step 2: Convert to fraction form
    91,245.78/125,922.76 = 52,483.52/x
  3. Step 3: Cross multiply
    91,245.78x = 125,922.76 × 52,483.52
  4. Step 4: Simplify right side
    91,245.78x = 6,608,869,692.92
  5. Step 5: Solve for x
    x = 6,608,869,692.92/91,245.78
  6. Step 6: Final answer
    x = 72,429.32

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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.