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Finding the Fourth Proportional to 347,863,266.80, 521,857,885.80 and 174,904,809.20

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Solution

The fourth proportional to 347,863,266.80, 521,857,885.80 and 174,904,809.20 is: 262,388,882.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,863,266.80 : 521,857,885.80 = 174,904,809.20 : x
  2. Step 2: Convert to fraction form
    347,863,266.80/521,857,885.80 = 174,904,809.20/x
  3. Step 3: Cross multiply
    347,863,266.80x = 521,857,885.80 × 174,904,809.20
  4. Step 4: Simplify right side
    347,863,266.80x = 91,275,453,945,364,384
  5. Step 5: Solve for x
    x = 91,275,453,945,364,384/347,863,266.80
  6. Step 6: Final answer
    x = 262,388,882.81

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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.