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Finding the Fourth Proportional to 208,756.60, 288,085.26 and 113,263.48

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Solution

The fourth proportional to 208,756.60, 288,085.26 and 113,263.48 is: 156,304.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,756.60 : 288,085.26 = 113,263.48 : x
  2. Step 2: Convert to fraction form
    208,756.60/288,085.26 = 113,263.48/x
  3. Step 3: Cross multiply
    208,756.60x = 288,085.26 × 113,263.48
  4. Step 4: Simplify right side
    208,756.60x = 32,629,539,084.30
  5. Step 5: Solve for x
    x = 32,629,539,084.30/208,756.60
  6. Step 6: Final answer
    x = 156,304.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.