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Finding the Fourth Proportional to 86,800.79, 119,736.86 and 50,498.16

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Solution

The fourth proportional to 86,800.79, 119,736.86 and 50,498.16 is: 69,659.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,800.79 : 119,736.86 = 50,498.16 : x
  2. Step 2: Convert to fraction form
    86,800.79/119,736.86 = 50,498.16/x
  3. Step 3: Cross multiply
    86,800.79x = 119,736.86 × 50,498.16
  4. Step 4: Simplify right side
    86,800.79x = 6,046,491,114.18
  5. Step 5: Solve for x
    x = 6,046,491,114.18/86,800.79
  6. Step 6: Final answer
    x = 69,659.40

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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.