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Finding the Fourth Proportional to 71,024.94, 98,011.17 and 40,788.99

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Solution

The fourth proportional to 71,024.94, 98,011.17 and 40,788.99 is: 56,286.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,024.94 : 98,011.17 = 40,788.99 : x
  2. Step 2: Convert to fraction form
    71,024.94/98,011.17 = 40,788.99/x
  3. Step 3: Cross multiply
    71,024.94x = 98,011.17 × 40,788.99
  4. Step 4: Simplify right side
    71,024.94x = 3,997,776,633.02
  5. Step 5: Solve for x
    x = 3,997,776,633.02/71,024.94
  6. Step 6: Final answer
    x = 56,286.94

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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.