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Finding the Fourth Proportional to 133,683.94, 184,478.20 and 79,937.20

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Solution

The fourth proportional to 133,683.94, 184,478.20 and 79,937.20 is: 110,309.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,683.94 : 184,478.20 = 79,937.20 : x
  2. Step 2: Convert to fraction form
    133,683.94/184,478.20 = 79,937.20/x
  3. Step 3: Cross multiply
    133,683.94x = 184,478.20 × 79,937.20
  4. Step 4: Simplify right side
    133,683.94x = 14,746,670,769.04
  5. Step 5: Solve for x
    x = 14,746,670,769.04/133,683.94
  6. Step 6: Final answer
    x = 110,309.97

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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.