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Finding the Fourth Proportional to 343,713.40, 516,031.80 and 201,704.20

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Solution

The fourth proportional to 343,713.40, 516,031.80 and 201,704.20 is: 302,827.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,713.40 : 516,031.80 = 201,704.20 : x
  2. Step 2: Convert to fraction form
    343,713.40/516,031.80 = 201,704.20/x
  3. Step 3: Cross multiply
    343,713.40x = 516,031.80 × 201,704.20
  4. Step 4: Simplify right side
    343,713.40x = 104,085,781,393.56
  5. Step 5: Solve for x
    x = 104,085,781,393.56/343,713.40
  6. Step 6: Final answer
    x = 302,827.24

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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.