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Finding the Fourth Proportional to 169,575.66, 254,169.98 and 68,308.86

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Solution

The fourth proportional to 169,575.66, 254,169.98 and 68,308.86 is: 102,385.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,575.66 : 254,169.98 = 68,308.86 : x
  2. Step 2: Convert to fraction form
    169,575.66/254,169.98 = 68,308.86/x
  3. Step 3: Cross multiply
    169,575.66x = 254,169.98 × 68,308.86
  4. Step 4: Simplify right side
    169,575.66x = 17,362,061,580.02
  5. Step 5: Solve for x
    x = 17,362,061,580.02/169,575.66
  6. Step 6: Final answer
    x = 102,385.34

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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.