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Finding the Fourth Proportional to 162,147.45, 243,221.99 and 73,296.93

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Solution

The fourth proportional to 162,147.45, 243,221.99 and 73,296.93 is: 109,945.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,147.45 : 243,221.99 = 73,296.93 : x
  2. Step 2: Convert to fraction form
    162,147.45/243,221.99 = 73,296.93/x
  3. Step 3: Cross multiply
    162,147.45x = 243,221.99 × 73,296.93
  4. Step 4: Simplify right side
    162,147.45x = 17,827,424,809.01
  5. Step 5: Solve for x
    x = 17,827,424,809.01/162,147.45
  6. Step 6: Final answer
    x = 109,945.76

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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.