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Finding the Fourth Proportional to 162,379.70, 243,606.45 and 73,658.60

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Solution

The fourth proportional to 162,379.70, 243,606.45 and 73,658.60 is: 110,504.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,379.70 : 243,606.45 = 73,658.60 : x
  2. Step 2: Convert to fraction form
    162,379.70/243,606.45 = 73,658.60/x
  3. Step 3: Cross multiply
    162,379.70x = 243,606.45 × 73,658.60
  4. Step 4: Simplify right side
    162,379.70x = 17,943,710,057.97
  5. Step 5: Solve for x
    x = 17,943,710,057.97/162,379.70
  6. Step 6: Final answer
    x = 110,504.64

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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.