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Finding the Fourth Proportional to 176,538.60, 264,710.70 and 71,238.60

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Solution

The fourth proportional to 176,538.60, 264,710.70 and 71,238.60 is: 106,818.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,538.60 : 264,710.70 = 71,238.60 : x
  2. Step 2: Convert to fraction form
    176,538.60/264,710.70 = 71,238.60/x
  3. Step 3: Cross multiply
    176,538.60x = 264,710.70 × 71,238.60
  4. Step 4: Simplify right side
    176,538.60x = 18,857,619,673.02
  5. Step 5: Solve for x
    x = 18,857,619,673.02/176,538.60
  6. Step 6: Final answer
    x = 106,818.68

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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.