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Finding the Fourth Proportional to 328,498.60, 492,747.90 and 106,882.60

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Solution

The fourth proportional to 328,498.60, 492,747.90 and 106,882.60 is: 160,323.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,498.60 : 492,747.90 = 106,882.60 : x
  2. Step 2: Convert to fraction form
    328,498.60/492,747.90 = 106,882.60/x
  3. Step 3: Cross multiply
    328,498.60x = 492,747.90 × 106,882.60
  4. Step 4: Simplify right side
    328,498.60x = 52,666,176,696.54
  5. Step 5: Solve for x
    x = 52,666,176,696.54/328,498.60
  6. Step 6: Final answer
    x = 160,323.90

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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.