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Finding the Fourth Proportional to 190,604.40, 285,833.60 and 64,210.68

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Solution

The fourth proportional to 190,604.40, 285,833.60 and 64,210.68 is: 96,291.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,604.40 : 285,833.60 = 64,210.68 : x
  2. Step 2: Convert to fraction form
    190,604.40/285,833.60 = 64,210.68/x
  3. Step 3: Cross multiply
    190,604.40x = 285,833.60 × 64,210.68
  4. Step 4: Simplify right side
    190,604.40x = 18,353,569,822.85
  5. Step 5: Solve for x
    x = 18,353,569,822.85/190,604.40
  6. Step 6: Final answer
    x = 96,291.43

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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.