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Finding the Fourth Proportional to 190,703.79, 285,944.45 and 57,544.11

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Solution

The fourth proportional to 190,703.79, 285,944.45 and 57,544.11 is: 86,282.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,703.79 : 285,944.45 = 57,544.11 : x
  2. Step 2: Convert to fraction form
    190,703.79/285,944.45 = 57,544.11/x
  3. Step 3: Cross multiply
    190,703.79x = 285,944.45 × 57,544.11
  4. Step 4: Simplify right side
    190,703.79x = 16,454,418,596.97
  5. Step 5: Solve for x
    x = 16,454,418,596.97/190,703.79
  6. Step 6: Final answer
    x = 86,282.60

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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.