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Finding the Fourth Proportional to 228,683.81, 343,339.92 and 116,439.45

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Solution

The fourth proportional to 228,683.81, 343,339.92 and 116,439.45 is: 174,819.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,683.81 : 343,339.92 = 116,439.45 : x
  2. Step 2: Convert to fraction form
    228,683.81/343,339.92 = 116,439.45/x
  3. Step 3: Cross multiply
    228,683.81x = 343,339.92 × 116,439.45
  4. Step 4: Simplify right side
    228,683.81x = 39,978,311,447.84
  5. Step 5: Solve for x
    x = 39,978,311,447.84/228,683.81
  6. Step 6: Final answer
    x = 174,819.16

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1.5x scale

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.