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Finding the Fourth Proportional to 177,890.60, 266,179.80 and 162,144.20

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Solution

The fourth proportional to 177,890.60, 266,179.80 and 162,144.20 is: 242,618.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,890.60 : 266,179.80 = 162,144.20 : x
  2. Step 2: Convert to fraction form
    177,890.60/266,179.80 = 162,144.20/x
  3. Step 3: Cross multiply
    177,890.60x = 266,179.80 × 162,144.20
  4. Step 4: Simplify right side
    177,890.60x = 43,159,510,727.16
  5. Step 5: Solve for x
    x = 43,159,510,727.16/177,890.60
  6. Step 6: Final answer
    x = 242,618.28

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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.