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Finding the Fourth Proportional to 190,590.85, 285,912.65 and 64,267.26

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Solution

The fourth proportional to 190,590.85, 285,912.65 and 64,267.26 is: 96,409.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,590.85 : 285,912.65 = 64,267.26 : x
  2. Step 2: Convert to fraction form
    190,590.85/285,912.65 = 64,267.26/x
  3. Step 3: Cross multiply
    190,590.85x = 285,912.65 × 64,267.26
  4. Step 4: Simplify right side
    190,590.85x = 18,374,822,614.84
  5. Step 5: Solve for x
    x = 18,374,822,614.84/190,590.85
  6. Step 6: Final answer
    x = 96,409.78

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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.