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Finding the Fourth Proportional to 328,047.80, 492,071.70 and 248,732.60

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Solution

The fourth proportional to 328,047.80, 492,071.70 and 248,732.60 is: 373,098.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,047.80 : 492,071.70 = 248,732.60 : x
  2. Step 2: Convert to fraction form
    328,047.80/492,071.70 = 248,732.60/x
  3. Step 3: Cross multiply
    328,047.80x = 492,071.70 × 248,732.60
  4. Step 4: Simplify right side
    328,047.80x = 122,394,273,327.42
  5. Step 5: Solve for x
    x = 122,394,273,327.42/328,047.80
  6. Step 6: Final answer
    x = 373,098.90

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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.