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Finding the Fourth Proportional to 155,957.40, 233,936.10 and 146,115.90

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Solution

The fourth proportional to 155,957.40, 233,936.10 and 146,115.90 is: 219,173.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,957.40 : 233,936.10 = 146,115.90 : x
  2. Step 2: Convert to fraction form
    155,957.40/233,936.10 = 146,115.90/x
  3. Step 3: Cross multiply
    155,957.40x = 233,936.10 × 146,115.90
  4. Step 4: Simplify right side
    155,957.40x = 34,181,783,793.99
  5. Step 5: Solve for x
    x = 34,181,783,793.99/155,957.40
  6. Step 6: Final answer
    x = 219,173.85

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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.