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Finding the Fourth Proportional to 109,279.60, 163,804.20 and 62,431.60

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Solution

The fourth proportional to 109,279.60, 163,804.20 and 62,431.60 is: 93,581.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,279.60 : 163,804.20 = 62,431.60 : x
  2. Step 2: Convert to fraction form
    109,279.60/163,804.20 = 62,431.60/x
  3. Step 3: Cross multiply
    109,279.60x = 163,804.20 × 62,431.60
  4. Step 4: Simplify right side
    109,279.60x = 10,226,558,292.72
  5. Step 5: Solve for x
    x = 10,226,558,292.72/109,279.60
  6. Step 6: Final answer
    x = 93,581.59

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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.