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Finding the Fourth Proportional to 141,326, 212,086.20 and 58,220

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Solution

The fourth proportional to 141,326, 212,086.20 and 58,220 is: 87,370.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,326 : 212,086.20 = 58,220 : x
  2. Step 2: Convert to fraction form
    141,326/212,086.20 = 58,220/x
  3. Step 3: Cross multiply
    141,326x = 212,086.20 × 58,220
  4. Step 4: Simplify right side
    141,326x = 12,347,658,564
  5. Step 5: Solve for x
    x = 12,347,658,564/141,326
  6. Step 6: Final answer
    x = 87,370.04

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.