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Finding the Fourth Proportional to 217,022.40, 325,630.80 and 98,632.80

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Solution

The fourth proportional to 217,022.40, 325,630.80 and 98,632.80 is: 147,993.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,022.40 : 325,630.80 = 98,632.80 : x
  2. Step 2: Convert to fraction form
    217,022.40/325,630.80 = 98,632.80/x
  3. Step 3: Cross multiply
    217,022.40x = 325,630.80 × 98,632.80
  4. Step 4: Simplify right side
    217,022.40x = 32,117,877,570.24
  5. Step 5: Solve for x
    x = 32,117,877,570.24/217,022.40
  6. Step 6: Final answer
    x = 147,993.38

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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.