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Finding the Fourth Proportional to 216,786.02, 325,098.30 and 74,591.60

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Solution

The fourth proportional to 216,786.02, 325,098.30 and 74,591.60 is: 111,859.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,786.02 : 325,098.30 = 74,591.60 : x
  2. Step 2: Convert to fraction form
    216,786.02/325,098.30 = 74,591.60/x
  3. Step 3: Cross multiply
    216,786.02x = 325,098.30 × 74,591.60
  4. Step 4: Simplify right side
    216,786.02x = 24,249,602,354.28
  5. Step 5: Solve for x
    x = 24,249,602,354.28/216,786.02
  6. Step 6: Final answer
    x = 111,859.62

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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.