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Finding the Fourth Proportional to 222,543.15, 333,855.73 and 72,791.40

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Solution

The fourth proportional to 222,543.15, 333,855.73 and 72,791.40 is: 109,200.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,543.15 : 333,855.73 = 72,791.40 : x
  2. Step 2: Convert to fraction form
    222,543.15/333,855.73 = 72,791.40/x
  3. Step 3: Cross multiply
    222,543.15x = 333,855.73 × 72,791.40
  4. Step 4: Simplify right side
    222,543.15x = 24,301,827,327.67
  5. Step 5: Solve for x
    x = 24,301,827,327.67/222,543.15
  6. Step 6: Final answer
    x = 109,200.52

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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.