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Finding the Fourth Proportional to 308,094.53, 425,179.11 and 172,143.46

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Solution

The fourth proportional to 308,094.53, 425,179.11 and 172,143.46 is: 237,562.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,094.53 : 425,179.11 = 172,143.46 : x
  2. Step 2: Convert to fraction form
    308,094.53/425,179.11 = 172,143.46/x
  3. Step 3: Cross multiply
    308,094.53x = 425,179.11 × 172,143.46
  4. Step 4: Simplify right side
    308,094.53x = 73,191,800,128.51
  5. Step 5: Solve for x
    x = 73,191,800,128.51/308,094.53
  6. Step 6: Final answer
    x = 237,562.80

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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.