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Finding the Fourth Proportional to 61,671.84, 85,108.69 and 37,811.67

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Solution

The fourth proportional to 61,671.84, 85,108.69 and 37,811.67 is: 52,181.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,671.84 : 85,108.69 = 37,811.67 : x
  2. Step 2: Convert to fraction form
    61,671.84/85,108.69 = 37,811.67/x
  3. Step 3: Cross multiply
    61,671.84x = 85,108.69 × 37,811.67
  4. Step 4: Simplify right side
    61,671.84x = 3,218,101,700.41
  5. Step 5: Solve for x
    x = 3,218,101,700.41/61,671.84
  6. Step 6: Final answer
    x = 52,181.06

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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.