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Finding the Fourth Proportional to 112,488.64, 168,675.44 and 37,581.76

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Solution

The fourth proportional to 112,488.64, 168,675.44 and 37,581.76 is: 56,353.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,488.64 : 168,675.44 = 37,581.76 : x
  2. Step 2: Convert to fraction form
    112,488.64/168,675.44 = 37,581.76/x
  3. Step 3: Cross multiply
    112,488.64x = 168,675.44 × 37,581.76
  4. Step 4: Simplify right side
    112,488.64x = 6,339,119,903.97
  5. Step 5: Solve for x
    x = 6,339,119,903.97/112,488.64
  6. Step 6: Final answer
    x = 56,353.42

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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.