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Finding the Fourth Proportional to 308,563.60, 425,823.24 and 174,427.60

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Solution

The fourth proportional to 308,563.60, 425,823.24 and 174,427.60 is: 240,713.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,563.60 : 425,823.24 = 174,427.60 : x
  2. Step 2: Convert to fraction form
    308,563.60/425,823.24 = 174,427.60/x
  3. Step 3: Cross multiply
    308,563.60x = 425,823.24 × 174,427.60
  4. Step 4: Simplify right side
    308,563.60x = 74,275,325,777.42
  5. Step 5: Solve for x
    x = 74,275,325,777.42/308,563.60
  6. Step 6: Final answer
    x = 240,713.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.