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Finding the Fourth Proportional to 74,674.60, 111,882.30 and 48,365.80

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Solution

The fourth proportional to 74,674.60, 111,882.30 and 48,365.80 is: 72,464.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,674.60 : 111,882.30 = 48,365.80 : x
  2. Step 2: Convert to fraction form
    74,674.60/111,882.30 = 48,365.80/x
  3. Step 3: Cross multiply
    74,674.60x = 111,882.30 × 48,365.80
  4. Step 4: Simplify right side
    74,674.60x = 5,411,276,945.34
  5. Step 5: Solve for x
    x = 5,411,276,945.34/74,674.60
  6. Step 6: Final answer
    x = 72,464.76

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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.