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Finding the Fourth Proportional to 347,909.70, 521,700.06 and 134,777.44

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Solution

The fourth proportional to 347,909.70, 521,700.06 and 134,777.44 is: 202,102.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,909.70 : 521,700.06 = 134,777.44 : x
  2. Step 2: Convert to fraction form
    347,909.70/521,700.06 = 134,777.44/x
  3. Step 3: Cross multiply
    347,909.70x = 521,700.06 × 134,777.44
  4. Step 4: Simplify right side
    347,909.70x = 70,313,398,534.65
  5. Step 5: Solve for x
    x = 70,313,398,534.65/347,909.70
  6. Step 6: Final answer
    x = 202,102.44

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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.