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Finding the Fourth Proportional to 181,938.60, 272,907.90 and 162,911.70

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Solution

The fourth proportional to 181,938.60, 272,907.90 and 162,911.70 is: 244,367.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,938.60 : 272,907.90 = 162,911.70 : x
  2. Step 2: Convert to fraction form
    181,938.60/272,907.90 = 162,911.70/x
  3. Step 3: Cross multiply
    181,938.60x = 272,907.90 × 162,911.70
  4. Step 4: Simplify right side
    181,938.60x = 44,459,889,932.43
  5. Step 5: Solve for x
    x = 44,459,889,932.43/181,938.60
  6. Step 6: Final answer
    x = 244,367.55

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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.