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Finding the Fourth Proportional to 70,658.67, 97,515.75 and 40,437.96

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Solution

The fourth proportional to 70,658.67, 97,515.75 and 40,437.96 is: 55,808.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,658.67 : 97,515.75 = 40,437.96 : x
  2. Step 2: Convert to fraction form
    70,658.67/97,515.75 = 40,437.96/x
  3. Step 3: Cross multiply
    70,658.67x = 97,515.75 × 40,437.96
  4. Step 4: Simplify right side
    70,658.67x = 3,943,337,997.87
  5. Step 5: Solve for x
    x = 3,943,337,997.87/70,658.67
  6. Step 6: Final answer
    x = 55,808.27

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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.