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Finding the Fourth Proportional to 66,591.48, 99,974.70 and 46,879.32

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Solution

The fourth proportional to 66,591.48, 99,974.70 and 46,879.32 is: 70,380.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,591.48 : 99,974.70 = 46,879.32 : x
  2. Step 2: Convert to fraction form
    66,591.48/99,974.70 = 46,879.32/x
  3. Step 3: Cross multiply
    66,591.48x = 99,974.70 × 46,879.32
  4. Step 4: Simplify right side
    66,591.48x = 4,686,745,953.20
  5. Step 5: Solve for x
    x = 4,686,745,953.20/66,591.48
  6. Step 6: Final answer
    x = 70,380.56

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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.