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Finding the Fourth Proportional to 190,891.92, 286,337.52 and 50,639.52

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Solution

The fourth proportional to 190,891.92, 286,337.52 and 50,639.52 is: 75,959.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,891.92 : 286,337.52 = 50,639.52 : x
  2. Step 2: Convert to fraction form
    190,891.92/286,337.52 = 50,639.52/x
  3. Step 3: Cross multiply
    190,891.92x = 286,337.52 × 50,639.52
  4. Step 4: Simplify right side
    190,891.92x = 14,499,994,570.79
  5. Step 5: Solve for x
    x = 14,499,994,570.79/190,891.92
  6. Step 6: Final answer
    x = 75,959.18

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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.