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Finding the Fourth Proportional to 72,308.75, 108,533.27 and 34,895.15

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Solution

The fourth proportional to 72,308.75, 108,533.27 and 34,895.15 is: 52,376.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,308.75 : 108,533.27 = 34,895.15 : x
  2. Step 2: Convert to fraction form
    72,308.75/108,533.27 = 34,895.15/x
  3. Step 3: Cross multiply
    72,308.75x = 108,533.27 × 34,895.15
  4. Step 4: Simplify right side
    72,308.75x = 3,787,285,102.43
  5. Step 5: Solve for x
    x = 3,787,285,102.43/72,308.75
  6. Step 6: Final answer
    x = 52,376.58

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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.