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Finding the Fourth Proportional to 108,536.96, 149,854.16 and 67,763.24

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Solution

The fourth proportional to 108,536.96, 149,854.16 and 67,763.24 is: 93,558.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,536.96 : 149,854.16 = 67,763.24 : x
  2. Step 2: Convert to fraction form
    108,536.96/149,854.16 = 67,763.24/x
  3. Step 3: Cross multiply
    108,536.96x = 149,854.16 × 67,763.24
  4. Step 4: Simplify right side
    108,536.96x = 10,154,603,409.08
  5. Step 5: Solve for x
    x = 10,154,603,409.08/108,536.96
  6. Step 6: Final answer
    x = 93,558.94

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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.