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Finding the Fourth Proportional to 72,273.64, 108,364.21 and 34,758.99

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Solution

The fourth proportional to 72,273.64, 108,364.21 and 34,758.99 is: 52,116.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,273.64 : 108,364.21 = 34,758.99 : x
  2. Step 2: Convert to fraction form
    72,273.64/108,364.21 = 34,758.99/x
  3. Step 3: Cross multiply
    72,273.64x = 108,364.21 × 34,758.99
  4. Step 4: Simplify right side
    72,273.64x = 3,766,630,811.22
  5. Step 5: Solve for x
    x = 3,766,630,811.22/72,273.64
  6. Step 6: Final answer
    x = 52,116.25

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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.