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Finding the Fourth Proportional to 125,324.72, 187,978.32 and 58,779.44

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Solution

The fourth proportional to 125,324.72, 187,978.32 and 58,779.44 is: 88,165.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,324.72 : 187,978.32 = 58,779.44 : x
  2. Step 2: Convert to fraction form
    125,324.72/187,978.32 = 58,779.44/x
  3. Step 3: Cross multiply
    125,324.72x = 187,978.32 × 58,779.44
  4. Step 4: Simplify right side
    125,324.72x = 11,049,260,381.74
  5. Step 5: Solve for x
    x = 11,049,260,381.74/125,324.72
  6. Step 6: Final answer
    x = 88,165.05

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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.