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Finding the Fourth Proportional to 74,462.60, 111,699.30 and 44,816.60

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Solution

The fourth proportional to 74,462.60, 111,699.30 and 44,816.60 is: 67,228.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,462.60 : 111,699.30 = 44,816.60 : x
  2. Step 2: Convert to fraction form
    74,462.60/111,699.30 = 44,816.60/x
  3. Step 3: Cross multiply
    74,462.60x = 111,699.30 × 44,816.60
  4. Step 4: Simplify right side
    74,462.60x = 5,005,982,848.38
  5. Step 5: Solve for x
    x = 5,005,982,848.38/74,462.60
  6. Step 6: Final answer
    x = 67,228.15

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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.