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Finding the Fourth Proportional to 230,906.60, 346,100.70 and 118,543.40

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Solution

The fourth proportional to 230,906.60, 346,100.70 and 118,543.40 is: 177,682.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,906.60 : 346,100.70 = 118,543.40 : x
  2. Step 2: Convert to fraction form
    230,906.60/346,100.70 = 118,543.40/x
  3. Step 3: Cross multiply
    230,906.60x = 346,100.70 × 118,543.40
  4. Step 4: Simplify right side
    230,906.60x = 41,027,953,720.38
  5. Step 5: Solve for x
    x = 41,027,953,720.38/230,906.60
  6. Step 6: Final answer
    x = 177,682.03

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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.