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Finding the Fourth Proportional to 342,939.92, 473,256.99 and 189,988.04

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Solution

The fourth proportional to 342,939.92, 473,256.99 and 189,988.04 is: 262,183.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,939.92 : 473,256.99 = 189,988.04 : x
  2. Step 2: Convert to fraction form
    342,939.92/473,256.99 = 189,988.04/x
  3. Step 3: Cross multiply
    342,939.92x = 473,256.99 × 189,988.04
  4. Step 4: Simplify right side
    342,939.92x = 89,913,165,580.11
  5. Step 5: Solve for x
    x = 89,913,165,580.11/342,939.92
  6. Step 6: Final answer
    x = 262,183.44

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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.