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Finding the Fourth Proportional to 176,912.10, 265,477.50 and 71,731.98

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Solution

The fourth proportional to 176,912.10, 265,477.50 and 71,731.98 is: 107,642.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,912.10 : 265,477.50 = 71,731.98 : x
  2. Step 2: Convert to fraction form
    176,912.10/265,477.50 = 71,731.98/x
  3. Step 3: Cross multiply
    176,912.10x = 265,477.50 × 71,731.98
  4. Step 4: Simplify right side
    176,912.10x = 19,043,226,720.45
  5. Step 5: Solve for x
    x = 19,043,226,720.45/176,912.10
  6. Step 6: Final answer
    x = 107,642.31

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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.