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Finding the Fourth Proportional to 139,532.60, 209,298.84 and 41,036.60

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Solution

The fourth proportional to 139,532.60, 209,298.84 and 41,036.60 is: 61,554.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,532.60 : 209,298.84 = 41,036.60 : x
  2. Step 2: Convert to fraction form
    139,532.60/209,298.84 = 41,036.60/x
  3. Step 3: Cross multiply
    139,532.60x = 209,298.84 × 41,036.60
  4. Step 4: Simplify right side
    139,532.60x = 8,588,912,777.54
  5. Step 5: Solve for x
    x = 8,588,912,777.54/139,532.60
  6. Step 6: Final answer
    x = 61,554.88

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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.