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Finding the Fourth Proportional to 108,536.16, 162,668.16 and 61,815.36

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Solution

The fourth proportional to 108,536.16, 162,668.16 and 61,815.36 is: 92,645.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,536.16 : 162,668.16 = 61,815.36 : x
  2. Step 2: Convert to fraction form
    108,536.16/162,668.16 = 61,815.36/x
  3. Step 3: Cross multiply
    108,536.16x = 162,668.16 × 61,815.36
  4. Step 4: Simplify right side
    108,536.16x = 10,055,390,870.94
  5. Step 5: Solve for x
    x = 10,055,390,870.94/108,536.16
  6. Step 6: Final answer
    x = 92,645.54

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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.