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Finding the Fourth Proportional to 71,476.84, 98,348.34 and 58,682.89

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Solution

The fourth proportional to 71,476.84, 98,348.34 and 58,682.89 is: 80,744.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,476.84 : 98,348.34 = 58,682.89 : x
  2. Step 2: Convert to fraction form
    71,476.84/98,348.34 = 58,682.89/x
  3. Step 3: Cross multiply
    71,476.84x = 98,348.34 × 58,682.89
  4. Step 4: Simplify right side
    71,476.84x = 5,771,364,817.90
  5. Step 5: Solve for x
    x = 5,771,364,817.90/71,476.84
  6. Step 6: Final answer
    x = 80,744.54

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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.