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Finding the Fourth Proportional to 347,714.40, 521,571.60 and 170,335.20

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Solution

The fourth proportional to 347,714.40, 521,571.60 and 170,335.20 is: 255,502.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,714.40 : 521,571.60 = 170,335.20 : x
  2. Step 2: Convert to fraction form
    347,714.40/521,571.60 = 170,335.20/x
  3. Step 3: Cross multiply
    347,714.40x = 521,571.60 × 170,335.20
  4. Step 4: Simplify right side
    347,714.40x = 88,842,002,800.32
  5. Step 5: Solve for x
    x = 88,842,002,800.32/347,714.40
  6. Step 6: Final answer
    x = 255,502.80

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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.