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Finding the Fourth Proportional to 190,355.91, 285,551.49 and 62,272.90

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Solution

The fourth proportional to 190,355.91, 285,551.49 and 62,272.90 is: 93,415.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,355.91 : 285,551.49 = 62,272.90 : x
  2. Step 2: Convert to fraction form
    190,355.91/285,551.49 = 62,272.90/x
  3. Step 3: Cross multiply
    190,355.91x = 285,551.49 × 62,272.90
  4. Step 4: Simplify right side
    190,355.91x = 17,782,119,972.08
  5. Step 5: Solve for x
    x = 17,782,119,972.08/190,355.91
  6. Step 6: Final answer
    x = 93,415.12

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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.