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Finding the Fourth Proportional to 61,410.40, 92,040.90 and 34,690.12

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Solution

The fourth proportional to 61,410.40, 92,040.90 and 34,690.12 is: 51,992.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,410.40 : 92,040.90 = 34,690.12 : x
  2. Step 2: Convert to fraction form
    61,410.40/92,040.90 = 34,690.12/x
  3. Step 3: Cross multiply
    61,410.40x = 92,040.90 × 34,690.12
  4. Step 4: Simplify right side
    61,410.40x = 3,192,909,865.91
  5. Step 5: Solve for x
    x = 3,192,909,865.91/61,410.40
  6. Step 6: Final answer
    x = 51,992.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.