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Finding the Fourth Proportional to 228,714.59, 315,627.99 and 126,741.76

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Solution

The fourth proportional to 228,714.59, 315,627.99 and 126,741.76 is: 174,904.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,714.59 : 315,627.99 = 126,741.76 : x
  2. Step 2: Convert to fraction form
    228,714.59/315,627.99 = 126,741.76/x
  3. Step 3: Cross multiply
    228,714.59x = 315,627.99 × 126,741.76
  4. Step 4: Simplify right side
    228,714.59x = 40,003,248,181.84
  5. Step 5: Solve for x
    x = 40,003,248,181.84/228,714.59
  6. Step 6: Final answer
    x = 174,904.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.