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Finding the Fourth Proportional to 161,657.40, 242,486.10 and 135,996.60

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Solution

The fourth proportional to 161,657.40, 242,486.10 and 135,996.60 is: 203,994.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,657.40 : 242,486.10 = 135,996.60 : x
  2. Step 2: Convert to fraction form
    161,657.40/242,486.10 = 135,996.60/x
  3. Step 3: Cross multiply
    161,657.40x = 242,486.10 × 135,996.60
  4. Step 4: Simplify right side
    161,657.40x = 32,977,285,147.26
  5. Step 5: Solve for x
    x = 32,977,285,147.26/161,657.40
  6. Step 6: Final answer
    x = 203,994.90

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1.5x scale

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.