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Finding the Fourth Proportional to 81,861.68, 112,975.68 and 46,049.55

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Solution

The fourth proportional to 81,861.68, 112,975.68 and 46,049.55 is: 63,552.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,861.68 : 112,975.68 = 46,049.55 : x
  2. Step 2: Convert to fraction form
    81,861.68/112,975.68 = 46,049.55/x
  3. Step 3: Cross multiply
    81,861.68x = 112,975.68 × 46,049.55
  4. Step 4: Simplify right side
    81,861.68x = 5,202,479,224.94
  5. Step 5: Solve for x
    x = 5,202,479,224.94/81,861.68
  6. Step 6: Final answer
    x = 63,552.07

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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.