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Finding the Fourth Proportional to 108,488.96, 149,609.40 and 84,606.92

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Solution

The fourth proportional to 108,488.96, 149,609.40 and 84,606.92 is: 116,675.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,488.96 : 149,609.40 = 84,606.92 : x
  2. Step 2: Convert to fraction form
    108,488.96/149,609.40 = 84,606.92/x
  3. Step 3: Cross multiply
    108,488.96x = 149,609.40 × 84,606.92
  4. Step 4: Simplify right side
    108,488.96x = 12,657,990,537.05
  5. Step 5: Solve for x
    x = 12,657,990,537.05/108,488.96
  6. Step 6: Final answer
    x = 116,675.38

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1.5x scale

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.