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Finding the Fourth Proportional to 125,879.71, 188,774.57 and 41,624.32

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Solution

The fourth proportional to 125,879.71, 188,774.57 and 41,624.32 is: 62,421.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,879.71 : 188,774.57 = 41,624.32 : x
  2. Step 2: Convert to fraction form
    125,879.71/188,774.57 = 41,624.32/x
  3. Step 3: Cross multiply
    125,879.71x = 188,774.57 × 41,624.32
  4. Step 4: Simplify right side
    125,879.71x = 7,857,612,165.67
  5. Step 5: Solve for x
    x = 7,857,612,165.67/125,879.71
  6. Step 6: Final answer
    x = 62,421.60

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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.