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Finding the Fourth Proportional to 132,574.85, 182,953.32 and 72,958.85

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Solution

The fourth proportional to 132,574.85, 182,953.32 and 72,958.85 is: 100,683.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,574.85 : 182,953.32 = 72,958.85 : x
  2. Step 2: Convert to fraction form
    132,574.85/182,953.32 = 72,958.85/x
  3. Step 3: Cross multiply
    132,574.85x = 182,953.32 × 72,958.85
  4. Step 4: Simplify right side
    132,574.85x = 13,348,062,551.32
  5. Step 5: Solve for x
    x = 13,348,062,551.32/132,574.85
  6. Step 6: Final answer
    x = 100,683.22

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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.