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Finding the Fourth Proportional to 104,245.68, 156,368.48 and 25,359.92

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Solution

The fourth proportional to 104,245.68, 156,368.48 and 25,359.92 is: 38,039.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,245.68 : 156,368.48 = 25,359.92 : x
  2. Step 2: Convert to fraction form
    104,245.68/156,368.48 = 25,359.92/x
  3. Step 3: Cross multiply
    104,245.68x = 156,368.48 × 25,359.92
  4. Step 4: Simplify right side
    104,245.68x = 3,965,492,143.32
  5. Step 5: Solve for x
    x = 3,965,492,143.32/104,245.68
  6. Step 6: Final answer
    x = 38,039.87

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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.