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Finding the Fourth Proportional to 104,653.60, 156,980.40 and 38,095.90

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Solution

The fourth proportional to 104,653.60, 156,980.40 and 38,095.90 is: 57,143.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,653.60 : 156,980.40 = 38,095.90 : x
  2. Step 2: Convert to fraction form
    104,653.60/156,980.40 = 38,095.90/x
  3. Step 3: Cross multiply
    104,653.60x = 156,980.40 × 38,095.90
  4. Step 4: Simplify right side
    104,653.60x = 5,980,309,620.36
  5. Step 5: Solve for x
    x = 5,980,309,620.36/104,653.60
  6. Step 6: Final answer
    x = 57,143.85

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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.