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Finding the Fourth Proportional to 190,898.70, 285,764.85 and 148,908.30

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Solution

The fourth proportional to 190,898.70, 285,764.85 and 148,908.30 is: 222,907.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,898.70 : 285,764.85 = 148,908.30 : x
  2. Step 2: Convert to fraction form
    190,898.70/285,764.85 = 148,908.30/x
  3. Step 3: Cross multiply
    190,898.70x = 285,764.85 × 148,908.30
  4. Step 4: Simplify right side
    190,898.70x = 42,552,758,013.26
  5. Step 5: Solve for x
    x = 42,552,758,013.26/190,898.70
  6. Step 6: Final answer
    x = 222,907.53

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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.