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Finding the Fourth Proportional to 328,052.60, 492,078.90 and 106,436.60

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Solution

The fourth proportional to 328,052.60, 492,078.90 and 106,436.60 is: 159,654.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,052.60 : 492,078.90 = 106,436.60 : x
  2. Step 2: Convert to fraction form
    328,052.60/492,078.90 = 106,436.60/x
  3. Step 3: Cross multiply
    328,052.60x = 492,078.90 × 106,436.60
  4. Step 4: Simplify right side
    328,052.60x = 52,375,205,047.74
  5. Step 5: Solve for x
    x = 52,375,205,047.74/328,052.60
  6. Step 6: Final answer
    x = 159,654.90

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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.