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Finding the Fourth Proportional to 71,262.63, 98,400.57 and 45,781.65

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Solution

The fourth proportional to 71,262.63, 98,400.57 and 45,781.65 is: 63,216.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,262.63 : 98,400.57 = 45,781.65 : x
  2. Step 2: Convert to fraction form
    71,262.63/98,400.57 = 45,781.65/x
  3. Step 3: Cross multiply
    71,262.63x = 98,400.57 × 45,781.65
  4. Step 4: Simplify right side
    71,262.63x = 4,504,940,455.54
  5. Step 5: Solve for x
    x = 4,504,940,455.54/71,262.63
  6. Step 6: Final answer
    x = 63,216.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.