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Finding the Fourth Proportional to 273,844.90, 377,901.21 and 152,978.50

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Solution

The fourth proportional to 273,844.90, 377,901.21 and 152,978.50 is: 211,107.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,844.90 : 377,901.21 = 152,978.50 : x
  2. Step 2: Convert to fraction form
    273,844.90/377,901.21 = 152,978.50/x
  3. Step 3: Cross multiply
    273,844.90x = 377,901.21 × 152,978.50
  4. Step 4: Simplify right side
    273,844.90x = 57,810,760,253.99
  5. Step 5: Solve for x
    x = 57,810,760,253.99/273,844.90
  6. Step 6: Final answer
    x = 211,107.68

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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.