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Finding the Fourth Proportional to 175,424.60, 263,136.90 and 161,907.80

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Solution

The fourth proportional to 175,424.60, 263,136.90 and 161,907.80 is: 242,861.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,424.60 : 263,136.90 = 161,907.80 : x
  2. Step 2: Convert to fraction form
    175,424.60/263,136.90 = 161,907.80/x
  3. Step 3: Cross multiply
    175,424.60x = 263,136.90 × 161,907.80
  4. Step 4: Simplify right side
    175,424.60x = 42,603,916,577.82
  5. Step 5: Solve for x
    x = 42,603,916,577.82/175,424.60
  6. Step 6: Final answer
    x = 242,861.70

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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.