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Finding the Fourth Proportional to 125,495.27, 188,317.70 and 45,539.48

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Solution

The fourth proportional to 125,495.27, 188,317.70 and 45,539.48 is: 68,336.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,495.27 : 188,317.70 = 45,539.48 : x
  2. Step 2: Convert to fraction form
    125,495.27/188,317.70 = 45,539.48/x
  3. Step 3: Cross multiply
    125,495.27x = 188,317.70 × 45,539.48
  4. Step 4: Simplify right side
    125,495.27x = 8,575,889,305.06
  5. Step 5: Solve for x
    x = 8,575,889,305.06/125,495.27
  6. Step 6: Final answer
    x = 68,336.35

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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.