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Finding the Fourth Proportional to 190,375.59, 285,541.11 and 76,518.84

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Solution

The fourth proportional to 190,375.59, 285,541.11 and 76,518.84 is: 114,769.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,375.59 : 285,541.11 = 76,518.84 : x
  2. Step 2: Convert to fraction form
    190,375.59/285,541.11 = 76,518.84/x
  3. Step 3: Cross multiply
    190,375.59x = 285,541.11 × 76,518.84
  4. Step 4: Simplify right side
    190,375.59x = 21,849,274,509.51
  5. Step 5: Solve for x
    x = 21,849,274,509.51/190,375.59
  6. Step 6: Final answer
    x = 114,769.31

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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.