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Finding the Fourth Proportional to 175,422.60, 263,133.90 and 161,905.80

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Solution

The fourth proportional to 175,422.60, 263,133.90 and 161,905.80 is: 242,858.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,422.60 : 263,133.90 = 161,905.80 : x
  2. Step 2: Convert to fraction form
    175,422.60/263,133.90 = 161,905.80/x
  3. Step 3: Cross multiply
    175,422.60x = 263,133.90 × 161,905.80
  4. Step 4: Simplify right side
    175,422.60x = 42,602,904,586.62
  5. Step 5: Solve for x
    x = 42,602,904,586.62/175,422.60
  6. Step 6: Final answer
    x = 242,858.70

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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.