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Finding the Fourth Proportional to 126,472.34, 174,472.16 and 75,455.88

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Solution

The fourth proportional to 126,472.34, 174,472.16 and 75,455.88 is: 104,093.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,472.34 : 174,472.16 = 75,455.88 : x
  2. Step 2: Convert to fraction form
    126,472.34/174,472.16 = 75,455.88/x
  3. Step 3: Cross multiply
    126,472.34x = 174,472.16 × 75,455.88
  4. Step 4: Simplify right side
    126,472.34x = 13,164,949,991.02
  5. Step 5: Solve for x
    x = 13,164,949,991.02/126,472.34
  6. Step 6: Final answer
    x = 104,093.52

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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.