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Finding the Fourth Proportional to 149,692.22, 206,609.94 and 98,714.12

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Solution

The fourth proportional to 149,692.22, 206,609.94 and 98,714.12 is: 136,248.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,692.22 : 206,609.94 = 98,714.12 : x
  2. Step 2: Convert to fraction form
    149,692.22/206,609.94 = 98,714.12/x
  3. Step 3: Cross multiply
    149,692.22x = 206,609.94 × 98,714.12
  4. Step 4: Simplify right side
    149,692.22x = 20,395,318,410.35
  5. Step 5: Solve for x
    x = 20,395,318,410.35/149,692.22
  6. Step 6: Final answer
    x = 136,248.35

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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.