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Finding the Fourth Proportional to 134,596.80, 185,742.72 and 74,167.92

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Solution

The fourth proportional to 134,596.80, 185,742.72 and 74,167.92 is: 102,351.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,596.80 : 185,742.72 = 74,167.92 : x
  2. Step 2: Convert to fraction form
    134,596.80/185,742.72 = 74,167.92/x
  3. Step 3: Cross multiply
    134,596.80x = 185,742.72 × 74,167.92
  4. Step 4: Simplify right side
    134,596.80x = 13,776,151,197.54
  5. Step 5: Solve for x
    x = 13,776,151,197.54/134,596.80
  6. Step 6: Final answer
    x = 102,351.25

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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.