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Finding the Fourth Proportional to 132,124.96, 182,483.84 and 87,004.64

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Solution

The fourth proportional to 132,124.96, 182,483.84 and 87,004.64 is: 120,166.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,124.96 : 182,483.84 = 87,004.64 : x
  2. Step 2: Convert to fraction form
    132,124.96/182,483.84 = 87,004.64/x
  3. Step 3: Cross multiply
    132,124.96x = 182,483.84 × 87,004.64
  4. Step 4: Simplify right side
    132,124.96x = 15,876,940,805.02
  5. Step 5: Solve for x
    x = 15,876,940,805.02/132,124.96
  6. Step 6: Final answer
    x = 120,166.10

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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.