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Finding the Fourth Proportional to 183,930.80, 275,531.70 and 162,012.20

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Solution

The fourth proportional to 183,930.80, 275,531.70 and 162,012.20 is: 242,697.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,930.80 : 275,531.70 = 162,012.20 : x
  2. Step 2: Convert to fraction form
    183,930.80/275,531.70 = 162,012.20/x
  3. Step 3: Cross multiply
    183,930.80x = 275,531.70 × 162,012.20
  4. Step 4: Simplify right side
    183,930.80x = 44,639,496,886.74
  5. Step 5: Solve for x
    x = 44,639,496,886.74/183,930.80
  6. Step 6: Final answer
    x = 242,697.24

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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.