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Finding the Fourth Proportional to 125,653.85, 188,511.75 and 62,503.92

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Solution

The fourth proportional to 125,653.85, 188,511.75 and 62,503.92 is: 93,771.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,653.85 : 188,511.75 = 62,503.92 : x
  2. Step 2: Convert to fraction form
    125,653.85/188,511.75 = 62,503.92/x
  3. Step 3: Cross multiply
    125,653.85x = 188,511.75 × 62,503.92
  4. Step 4: Simplify right side
    125,653.85x = 11,782,723,341.06
  5. Step 5: Solve for x
    x = 11,782,723,341.06/125,653.85
  6. Step 6: Final answer
    x = 93,771.29

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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.