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Finding the Fourth Proportional to 70,958.29, 97,914.94 and 39,125.29

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Solution

The fourth proportional to 70,958.29, 97,914.94 and 39,125.29 is: 53,988.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,958.29 : 97,914.94 = 39,125.29 : x
  2. Step 2: Convert to fraction form
    70,958.29/97,914.94 = 39,125.29/x
  3. Step 3: Cross multiply
    70,958.29x = 97,914.94 × 39,125.29
  4. Step 4: Simplify right side
    70,958.29x = 3,830,950,422.83
  5. Step 5: Solve for x
    x = 3,830,950,422.83/70,958.29
  6. Step 6: Final answer
    x = 53,988.76

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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.