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Finding the Fourth Proportional to 72,302.46, 107,961.51 and 63,798.09

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Solution

The fourth proportional to 72,302.46, 107,961.51 and 63,798.09 is: 95,262.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,302.46 : 107,961.51 = 63,798.09 : x
  2. Step 2: Convert to fraction form
    72,302.46/107,961.51 = 63,798.09/x
  3. Step 3: Cross multiply
    72,302.46x = 107,961.51 × 63,798.09
  4. Step 4: Simplify right side
    72,302.46x = 6,887,738,131.52
  5. Step 5: Solve for x
    x = 6,887,738,131.52/72,302.46
  6. Step 6: Final answer
    x = 95,262.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.