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Finding the Fourth Proportional to 347,877.70, 521,891.02 and 107,986.34

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Solution

The fourth proportional to 347,877.70, 521,891.02 and 107,986.34 is: 162,002.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,877.70 : 521,891.02 = 107,986.34 : x
  2. Step 2: Convert to fraction form
    347,877.70/521,891.02 = 107,986.34/x
  3. Step 3: Cross multiply
    347,877.70x = 521,891.02 × 107,986.34
  4. Step 4: Simplify right side
    347,877.70x = 56,357,101,128.67
  5. Step 5: Solve for x
    x = 56,357,101,128.67/347,877.70
  6. Step 6: Final answer
    x = 162,002.63

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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.