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Finding the Fourth Proportional to 362,877.11, 543,131.23 and 266,788.88

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Solution

The fourth proportional to 362,877.11, 543,131.23 and 266,788.88 is: 399,312.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,877.11 : 543,131.23 = 266,788.88 : x
  2. Step 2: Convert to fraction form
    362,877.11/543,131.23 = 266,788.88/x
  3. Step 3: Cross multiply
    362,877.11x = 543,131.23 × 266,788.88
  4. Step 4: Simplify right side
    362,877.11x = 144,901,370,519.92
  5. Step 5: Solve for x
    x = 144,901,370,519.92/362,877.11
  6. Step 6: Final answer
    x = 399,312.51

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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.