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Finding the Fourth Proportional to 223,617.60, 335,167.20 and 90,410.40

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Solution

The fourth proportional to 223,617.60, 335,167.20 and 90,410.40 is: 135,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,617.60 : 335,167.20 = 90,410.40 : x
  2. Step 2: Convert to fraction form
    223,617.60/335,167.20 = 90,410.40/x
  3. Step 3: Cross multiply
    223,617.60x = 335,167.20 × 90,410.40
  4. Step 4: Simplify right side
    223,617.60x = 30,302,600,618.88
  5. Step 5: Solve for x
    x = 30,302,600,618.88/223,617.60
  6. Step 6: Final answer
    x = 135,510.80

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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.