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Finding the Fourth Proportional to 48,758.25, 73,220.76 and 30,148.25

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Solution

The fourth proportional to 48,758.25, 73,220.76 and 30,148.25 is: 45,273.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,758.25 : 73,220.76 = 30,148.25 : x
  2. Step 2: Convert to fraction form
    48,758.25/73,220.76 = 30,148.25/x
  3. Step 3: Cross multiply
    48,758.25x = 73,220.76 × 30,148.25
  4. Step 4: Simplify right side
    48,758.25x = 2,207,477,823.43
  5. Step 5: Solve for x
    x = 2,207,477,823.43/48,758.25
  6. Step 6: Final answer
    x = 45,273.93

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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.