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Finding the Fourth Proportional to 142,751.94, 214,129.43 and 58,490.48

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Solution

The fourth proportional to 142,751.94, 214,129.43 and 58,490.48 is: 87,736.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,751.94 : 214,129.43 = 58,490.48 : x
  2. Step 2: Convert to fraction form
    142,751.94/214,129.43 = 58,490.48/x
  3. Step 3: Cross multiply
    142,751.94x = 214,129.43 × 58,490.48
  4. Step 4: Simplify right side
    142,751.94x = 12,524,531,779.73
  5. Step 5: Solve for x
    x = 12,524,531,779.73/142,751.94
  6. Step 6: Final answer
    x = 87,736.33

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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.