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Finding the Fourth Proportional to 468,585.78, 702,905.90 and 131,652.69

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Solution

The fourth proportional to 468,585.78, 702,905.90 and 131,652.69 is: 197,486.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,585.78 : 702,905.90 = 131,652.69 : x
  2. Step 2: Convert to fraction form
    468,585.78/702,905.90 = 131,652.69/x
  3. Step 3: Cross multiply
    468,585.78x = 702,905.90 × 131,652.69
  4. Step 4: Simplify right side
    468,585.78x = 92,539,451,893.61
  5. Step 5: Solve for x
    x = 92,539,451,893.61/468,585.78
  6. Step 6: Final answer
    x = 197,486.68

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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.