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Finding the Fourth Proportional to 92,570, 138,861.48 and 37,166

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Solution

The fourth proportional to 92,570, 138,861.48 and 37,166 is: 55,751.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,570 : 138,861.48 = 37,166 : x
  2. Step 2: Convert to fraction form
    92,570/138,861.48 = 37,166/x
  3. Step 3: Cross multiply
    92,570x = 138,861.48 × 37,166
  4. Step 4: Simplify right side
    92,570x = 5,160,925,765.68
  5. Step 5: Solve for x
    x = 5,160,925,765.68/92,570
  6. Step 6: Final answer
    x = 55,751.60

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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.