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Finding the Fourth Proportional to 217,359.86, 325,617.66 and 122,300.24

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Solution

The fourth proportional to 217,359.86, 325,617.66 and 122,300.24 is: 183,212.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,359.86 : 325,617.66 = 122,300.24 : x
  2. Step 2: Convert to fraction form
    217,359.86/325,617.66 = 122,300.24/x
  3. Step 3: Cross multiply
    217,359.86x = 325,617.66 × 122,300.24
  4. Step 4: Simplify right side
    217,359.86x = 39,823,116,338.15
  5. Step 5: Solve for x
    x = 39,823,116,338.15/217,359.86
  6. Step 6: Final answer
    x = 183,212.84

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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.