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Finding the Fourth Proportional to 61,808.11, 92,712.12 and 58,652.67

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Solution

The fourth proportional to 61,808.11, 92,712.12 and 58,652.67 is: 87,978.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,808.11 : 92,712.12 = 58,652.67 : x
  2. Step 2: Convert to fraction form
    61,808.11/92,712.12 = 58,652.67/x
  3. Step 3: Cross multiply
    61,808.11x = 92,712.12 × 58,652.67
  4. Step 4: Simplify right side
    61,808.11x = 5,437,813,379.36
  5. Step 5: Solve for x
    x = 5,437,813,379.36/61,808.11
  6. Step 6: Final answer
    x = 87,978.96

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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.