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Finding the Fourth Proportional to 48,295.80, 72,443.70 and 46,546.20

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Solution

The fourth proportional to 48,295.80, 72,443.70 and 46,546.20 is: 69,819.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,295.80 : 72,443.70 = 46,546.20 : x
  2. Step 2: Convert to fraction form
    48,295.80/72,443.70 = 46,546.20/x
  3. Step 3: Cross multiply
    48,295.80x = 72,443.70 × 46,546.20
  4. Step 4: Simplify right side
    48,295.80x = 3,371,978,948.94
  5. Step 5: Solve for x
    x = 3,371,978,948.94/48,295.80
  6. Step 6: Final answer
    x = 69,819.30

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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.