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Finding the Fourth Proportional to 308,179.17, 462,268.80 and 83,539.62

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Solution

The fourth proportional to 308,179.17, 462,268.80 and 83,539.62 is: 125,309.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,179.17 : 462,268.80 = 83,539.62 : x
  2. Step 2: Convert to fraction form
    308,179.17/462,268.80 = 83,539.62/x
  3. Step 3: Cross multiply
    308,179.17x = 462,268.80 × 83,539.62
  4. Step 4: Simplify right side
    308,179.17x = 38,617,759,889.86
  5. Step 5: Solve for x
    x = 38,617,759,889.86/308,179.17
  6. Step 6: Final answer
    x = 125,309.44

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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.