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Finding the Fourth Proportional to 328,374.70, 492,562.05 and 118,033.90

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Solution

The fourth proportional to 328,374.70, 492,562.05 and 118,033.90 is: 177,050.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,374.70 : 492,562.05 = 118,033.90 : x
  2. Step 2: Convert to fraction form
    328,374.70/492,562.05 = 118,033.90/x
  3. Step 3: Cross multiply
    328,374.70x = 492,562.05 × 118,033.90
  4. Step 4: Simplify right side
    328,374.70x = 58,139,019,753.50
  5. Step 5: Solve for x
    x = 58,139,019,753.50/328,374.70
  6. Step 6: Final answer
    x = 177,050.85

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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.