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Finding the Fourth Proportional to 217,313.68, 325,977.40 and 67,554.80

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Solution

The fourth proportional to 217,313.68, 325,977.40 and 67,554.80 is: 101,334.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,313.68 : 325,977.40 = 67,554.80 : x
  2. Step 2: Convert to fraction form
    217,313.68/325,977.40 = 67,554.80/x
  3. Step 3: Cross multiply
    217,313.68x = 325,977.40 × 67,554.80
  4. Step 4: Simplify right side
    217,313.68x = 22,021,338,061.52
  5. Step 5: Solve for x
    x = 22,021,338,061.52/217,313.68
  6. Step 6: Final answer
    x = 101,334.34

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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.