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Finding the Fourth Proportional to 216,828.80, 325,243.20 and 201,082.40

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Solution

The fourth proportional to 216,828.80, 325,243.20 and 201,082.40 is: 301,623.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,828.80 : 325,243.20 = 201,082.40 : x
  2. Step 2: Convert to fraction form
    216,828.80/325,243.20 = 201,082.40/x
  3. Step 3: Cross multiply
    216,828.80x = 325,243.20 × 201,082.40
  4. Step 4: Simplify right side
    216,828.80x = 65,400,683,239.68
  5. Step 5: Solve for x
    x = 65,400,683,239.68/216,828.80
  6. Step 6: Final answer
    x = 301,623.60

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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.