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Finding the Fourth Proportional to 168,017.60, 252,099.30 and 84,911.60

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Solution

The fourth proportional to 168,017.60, 252,099.30 and 84,911.60 is: 127,404.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,017.60 : 252,099.30 = 84,911.60 : x
  2. Step 2: Convert to fraction form
    168,017.60/252,099.30 = 84,911.60/x
  3. Step 3: Cross multiply
    168,017.60x = 252,099.30 × 84,911.60
  4. Step 4: Simplify right side
    168,017.60x = 21,406,154,921.88
  5. Step 5: Solve for x
    x = 21,406,154,921.88/168,017.60
  6. Step 6: Final answer
    x = 127,404.24

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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.