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Finding the Fourth Proportional to 190,357.48, 285,536.85 and 48,202.68

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Solution

The fourth proportional to 190,357.48, 285,536.85 and 48,202.68 is: 72,304.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,357.48 : 285,536.85 = 48,202.68 : x
  2. Step 2: Convert to fraction form
    190,357.48/285,536.85 = 48,202.68/x
  3. Step 3: Cross multiply
    190,357.48x = 285,536.85 × 48,202.68
  4. Step 4: Simplify right side
    190,357.48x = 13,763,640,692.62
  5. Step 5: Solve for x
    x = 13,763,640,692.62/190,357.48
  6. Step 6: Final answer
    x = 72,304.18

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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.