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Finding the Fourth Proportional to 215,347.92, 323,051.43 and 73,155.03

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Solution

The fourth proportional to 215,347.92, 323,051.43 and 73,155.03 is: 109,742.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,347.92 : 323,051.43 = 73,155.03 : x
  2. Step 2: Convert to fraction form
    215,347.92/323,051.43 = 73,155.03/x
  3. Step 3: Cross multiply
    215,347.92x = 323,051.43 × 73,155.03
  4. Step 4: Simplify right side
    215,347.92x = 23,632,837,053.19
  5. Step 5: Solve for x
    x = 23,632,837,053.19/215,347.92
  6. Step 6: Final answer
    x = 109,742.58

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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.