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Finding the Fourth Proportional to 235,395.89, 324,732.14 and 139,834.92

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Solution

The fourth proportional to 235,395.89, 324,732.14 and 139,834.92 is: 192,904.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,395.89 : 324,732.14 = 139,834.92 : x
  2. Step 2: Convert to fraction form
    235,395.89/324,732.14 = 139,834.92/x
  3. Step 3: Cross multiply
    235,395.89x = 324,732.14 × 139,834.92
  4. Step 4: Simplify right side
    235,395.89x = 45,408,893,861.28
  5. Step 5: Solve for x
    x = 45,408,893,861.28/235,395.89
  6. Step 6: Final answer
    x = 192,904.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.