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Finding the Fourth Proportional to 312,216.63, 468,324.96 and 75,559.32

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Solution

The fourth proportional to 312,216.63, 468,324.96 and 75,559.32 is: 113,338.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,216.63 : 468,324.96 = 75,559.32 : x
  2. Step 2: Convert to fraction form
    312,216.63/468,324.96 = 75,559.32/x
  3. Step 3: Cross multiply
    312,216.63x = 468,324.96 × 75,559.32
  4. Step 4: Simplify right side
    312,216.63x = 35,386,315,516.63
  5. Step 5: Solve for x
    x = 35,386,315,516.63/312,216.63
  6. Step 6: Final answer
    x = 113,338.98

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1.5x scale

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.