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Finding the Fourth Proportional to 134,461.96, 185,555.70 and 74,845.96

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Solution

The fourth proportional to 134,461.96, 185,555.70 and 74,845.96 is: 103,286.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,461.96 : 185,555.70 = 74,845.96 : x
  2. Step 2: Convert to fraction form
    134,461.96/185,555.70 = 74,845.96/x
  3. Step 3: Cross multiply
    134,461.96x = 185,555.70 × 74,845.96
  4. Step 4: Simplify right side
    134,461.96x = 13,888,094,499.97
  5. Step 5: Solve for x
    x = 13,888,094,499.97/134,461.96
  6. Step 6: Final answer
    x = 103,286.42

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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.