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Finding the Fourth Proportional to 272,884.64, 376,571.31 and 152,019.68

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Solution

The fourth proportional to 272,884.64, 376,571.31 and 152,019.68 is: 209,781.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,884.64 : 376,571.31 = 152,019.68 : x
  2. Step 2: Convert to fraction form
    272,884.64/376,571.31 = 152,019.68/x
  3. Step 3: Cross multiply
    272,884.64x = 376,571.31 × 152,019.68
  4. Step 4: Simplify right side
    272,884.64x = 57,246,250,043.38
  5. Step 5: Solve for x
    x = 57,246,250,043.38/272,884.64
  6. Step 6: Final answer
    x = 209,781.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.