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Finding the Fourth Proportional to 216,999.96, 325,550.43 and 67,232.31

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Solution

The fourth proportional to 216,999.96, 325,550.43 and 67,232.31 is: 100,864.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,999.96 : 325,550.43 = 67,232.31 : x
  2. Step 2: Convert to fraction form
    216,999.96/325,550.43 = 67,232.31/x
  3. Step 3: Cross multiply
    216,999.96x = 325,550.43 × 67,232.31
  4. Step 4: Simplify right side
    216,999.96x = 21,887,507,430.39
  5. Step 5: Solve for x
    x = 21,887,507,430.39/216,999.96
  6. Step 6: Final answer
    x = 100,864.11

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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.