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Finding the Fourth Proportional to 176,727.10, 265,090.65 and 71,491.90

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Solution

The fourth proportional to 176,727.10, 265,090.65 and 71,491.90 is: 107,237.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,727.10 : 265,090.65 = 71,491.90 : x
  2. Step 2: Convert to fraction form
    176,727.10/265,090.65 = 71,491.90/x
  3. Step 3: Cross multiply
    176,727.10x = 265,090.65 × 71,491.90
  4. Step 4: Simplify right side
    176,727.10x = 18,951,834,240.74
  5. Step 5: Solve for x
    x = 18,951,834,240.74/176,727.10
  6. Step 6: Final answer
    x = 107,237.85

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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.