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Finding the Fourth Proportional to 132,358.78, 182,653.41 and 71,927.92

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Solution

The fourth proportional to 132,358.78, 182,653.41 and 71,927.92 is: 99,259.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,358.78 : 182,653.41 = 71,927.92 : x
  2. Step 2: Convert to fraction form
    132,358.78/182,653.41 = 71,927.92/x
  3. Step 3: Cross multiply
    132,358.78x = 182,653.41 × 71,927.92
  4. Step 4: Simplify right side
    132,358.78x = 13,137,879,862.21
  5. Step 5: Solve for x
    x = 13,137,879,862.21/132,358.78
  6. Step 6: Final answer
    x = 99,259.60

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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.