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Finding the Fourth Proportional to 308,080.29, 425,142.47 and 168,373.36

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Solution

The fourth proportional to 308,080.29, 425,142.47 and 168,373.36 is: 232,350.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,080.29 : 425,142.47 = 168,373.36 : x
  2. Step 2: Convert to fraction form
    308,080.29/425,142.47 = 168,373.36/x
  3. Step 3: Cross multiply
    308,080.29x = 425,142.47 × 168,373.36
  4. Step 4: Simplify right side
    308,080.29x = 71,582,665,909.25
  5. Step 5: Solve for x
    x = 71,582,665,909.25/308,080.29
  6. Step 6: Final answer
    x = 232,350.69

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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.