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Finding the Fourth Proportional to 112,498.65, 168,745.68 and 45,923.16

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Solution

The fourth proportional to 112,498.65, 168,745.68 and 45,923.16 is: 68,883.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,498.65 : 168,745.68 = 45,923.16 : x
  2. Step 2: Convert to fraction form
    112,498.65/168,745.68 = 45,923.16/x
  3. Step 3: Cross multiply
    112,498.65x = 168,745.68 × 45,923.16
  4. Step 4: Simplify right side
    112,498.65x = 7,749,334,861.95
  5. Step 5: Solve for x
    x = 7,749,334,861.95/112,498.65
  6. Step 6: Final answer
    x = 68,883.80

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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.