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Finding the Fourth Proportional to 190,628.76, 285,927.57 and 64,266.28

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Solution

The fourth proportional to 190,628.76, 285,927.57 and 64,266.28 is: 96,394.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,628.76 : 285,927.57 = 64,266.28 : x
  2. Step 2: Convert to fraction form
    190,628.76/285,927.57 = 64,266.28/x
  3. Step 3: Cross multiply
    190,628.76x = 285,927.57 × 64,266.28
  4. Step 4: Simplify right side
    190,628.76x = 18,375,500,558.52
  5. Step 5: Solve for x
    x = 18,375,500,558.52/190,628.76
  6. Step 6: Final answer
    x = 96,394.17

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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.