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Finding the Fourth Proportional to 61,234.40, 91,808.40 and 27,970.40

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Solution

The fourth proportional to 61,234.40, 91,808.40 and 27,970.40 is: 41,935.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,234.40 : 91,808.40 = 27,970.40 : x
  2. Step 2: Convert to fraction form
    61,234.40/91,808.40 = 27,970.40/x
  3. Step 3: Cross multiply
    61,234.40x = 91,808.40 × 27,970.40
  4. Step 4: Simplify right side
    61,234.40x = 2,567,917,671.36
  5. Step 5: Solve for x
    x = 2,567,917,671.36/61,234.40
  6. Step 6: Final answer
    x = 41,935.87

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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.