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Finding the Fourth Proportional to 342,894.80, 473,189.64 and 191,997.20

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Solution

The fourth proportional to 342,894.80, 473,189.64 and 191,997.20 is: 264,953.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,894.80 : 473,189.64 = 191,997.20 : x
  2. Step 2: Convert to fraction form
    342,894.80/473,189.64 = 191,997.20/x
  3. Step 3: Cross multiply
    342,894.80x = 473,189.64 × 191,997.20
  4. Step 4: Simplify right side
    342,894.80x = 90,851,085,949.01
  5. Step 5: Solve for x
    x = 90,851,085,949.01/342,894.80
  6. Step 6: Final answer
    x = 264,953.23

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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.