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Finding the Fourth Proportional to 273,858.90, 377,887.89 and 152,985.24

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Solution

The fourth proportional to 273,858.90, 377,887.89 and 152,985.24 is: 211,098.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,858.90 : 377,887.89 = 152,985.24 : x
  2. Step 2: Convert to fraction form
    273,858.90/377,887.89 = 152,985.24/x
  3. Step 3: Cross multiply
    273,858.90x = 377,887.89 × 152,985.24
  4. Step 4: Simplify right side
    273,858.90x = 57,811,269,544.74
  5. Step 5: Solve for x
    x = 57,811,269,544.74/273,858.90
  6. Step 6: Final answer
    x = 211,098.74

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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.