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Finding the Fourth Proportional to 132,513.16, 198,789.44 and 43,776.04

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Solution

The fourth proportional to 132,513.16, 198,789.44 and 43,776.04 is: 65,670.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,513.16 : 198,789.44 = 43,776.04 : x
  2. Step 2: Convert to fraction form
    132,513.16/198,789.44 = 43,776.04/x
  3. Step 3: Cross multiply
    132,513.16x = 198,789.44 × 43,776.04
  4. Step 4: Simplify right side
    132,513.16x = 8,702,214,477.02
  5. Step 5: Solve for x
    x = 8,702,214,477.02/132,513.16
  6. Step 6: Final answer
    x = 65,670.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.