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Finding the Fourth Proportional to 112,405.60, 168,584.10 and 49,225.60

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Solution

The fourth proportional to 112,405.60, 168,584.10 and 49,225.60 is: 73,827.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,405.60 : 168,584.10 = 49,225.60 : x
  2. Step 2: Convert to fraction form
    112,405.60/168,584.10 = 49,225.60/x
  3. Step 3: Cross multiply
    112,405.60x = 168,584.10 × 49,225.60
  4. Step 4: Simplify right side
    112,405.60x = 8,298,653,472.96
  5. Step 5: Solve for x
    x = 8,298,653,472.96/112,405.60
  6. Step 6: Final answer
    x = 73,827.76

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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.