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Finding the Fourth Proportional to 215,829.18, 323,773.32 and 73,636.32

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Solution

The fourth proportional to 215,829.18, 323,773.32 and 73,636.32 is: 110,464.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,829.18 : 323,773.32 = 73,636.32 : x
  2. Step 2: Convert to fraction form
    215,829.18/323,773.32 = 73,636.32/x
  3. Step 3: Cross multiply
    215,829.18x = 323,773.32 × 73,636.32
  4. Step 4: Simplify right side
    215,829.18x = 23,841,475,798.98
  5. Step 5: Solve for x
    x = 23,841,475,798.98/215,829.18
  6. Step 6: Final answer
    x = 110,464.56

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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.