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Finding the Fourth Proportional to 77,324.50, 106,708.01 and 45,078.27

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Solution

The fourth proportional to 77,324.50, 106,708.01 and 45,078.27 is: 62,208.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,324.50 : 106,708.01 = 45,078.27 : x
  2. Step 2: Convert to fraction form
    77,324.50/106,708.01 = 45,078.27/x
  3. Step 3: Cross multiply
    77,324.50x = 106,708.01 × 45,078.27
  4. Step 4: Simplify right side
    77,324.50x = 4,810,212,485.94
  5. Step 5: Solve for x
    x = 4,810,212,485.94/77,324.50
  6. Step 6: Final answer
    x = 62,208.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.