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Finding the Fourth Proportional to 141,720.48, 212,606.88 and 58,620.96

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Solution

The fourth proportional to 141,720.48, 212,606.88 and 58,620.96 is: 87,942.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,720.48 : 212,606.88 = 58,620.96 : x
  2. Step 2: Convert to fraction form
    141,720.48/212,606.88 = 58,620.96/x
  3. Step 3: Cross multiply
    141,720.48x = 212,606.88 × 58,620.96
  4. Step 4: Simplify right side
    141,720.48x = 12,463,219,408.20
  5. Step 5: Solve for x
    x = 12,463,219,408.20/141,720.48
  6. Step 6: Final answer
    x = 87,942.26

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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.