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Finding the Fourth Proportional to 308,533.28, 462,683.12 and 168,215.52

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Solution

The fourth proportional to 308,533.28, 462,683.12 and 168,215.52 is: 252,259.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,533.28 : 462,683.12 = 168,215.52 : x
  2. Step 2: Convert to fraction form
    308,533.28/462,683.12 = 168,215.52/x
  3. Step 3: Cross multiply
    308,533.28x = 462,683.12 × 168,215.52
  4. Step 4: Simplify right side
    308,533.28x = 77,830,481,626.02
  5. Step 5: Solve for x
    x = 77,830,481,626.02/308,533.28
  6. Step 6: Final answer
    x = 252,259.60

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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.