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Finding the Fourth Proportional to 176,310.78, 264,235.15 and 81,528.93

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Solution

The fourth proportional to 176,310.78, 264,235.15 and 81,528.93 is: 122,186.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,310.78 : 264,235.15 = 81,528.93 : x
  2. Step 2: Convert to fraction form
    176,310.78/264,235.15 = 81,528.93/x
  3. Step 3: Cross multiply
    176,310.78x = 264,235.15 × 81,528.93
  4. Step 4: Simplify right side
    176,310.78x = 21,542,809,047.89
  5. Step 5: Solve for x
    x = 21,542,809,047.89/176,310.78
  6. Step 6: Final answer
    x = 122,186.57

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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.