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Finding the Fourth Proportional to 92,146.56, 127,164.80 and 51,861.76

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Solution

The fourth proportional to 92,146.56, 127,164.80 and 51,861.76 is: 71,570.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,146.56 : 127,164.80 = 51,861.76 : x
  2. Step 2: Convert to fraction form
    92,146.56/127,164.80 = 51,861.76/x
  3. Step 3: Cross multiply
    92,146.56x = 127,164.80 × 51,861.76
  4. Step 4: Simplify right side
    92,146.56x = 6,594,990,338.05
  5. Step 5: Solve for x
    x = 6,594,990,338.05/92,146.56
  6. Step 6: Final answer
    x = 71,570.66

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1.5x scale

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.