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Finding the Fourth Proportional to 79,483.92, 109,688.04 and 43,674.64

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Solution

The fourth proportional to 79,483.92, 109,688.04 and 43,674.64 is: 60,271.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,483.92 : 109,688.04 = 43,674.64 : x
  2. Step 2: Convert to fraction form
    79,483.92/109,688.04 = 43,674.64/x
  3. Step 3: Cross multiply
    79,483.92x = 109,688.04 × 43,674.64
  4. Step 4: Simplify right side
    79,483.92x = 4,790,585,659.31
  5. Step 5: Solve for x
    x = 4,790,585,659.31/79,483.92
  6. Step 6: Final answer
    x = 60,271.13

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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.