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Finding the Fourth Proportional to 95,859.60, 143,789.40 and 90,416.40

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Solution

The fourth proportional to 95,859.60, 143,789.40 and 90,416.40 is: 135,624.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,859.60 : 143,789.40 = 90,416.40 : x
  2. Step 2: Convert to fraction form
    95,859.60/143,789.40 = 90,416.40/x
  3. Step 3: Cross multiply
    95,859.60x = 143,789.40 × 90,416.40
  4. Step 4: Simplify right side
    95,859.60x = 13,000,919,906.16
  5. Step 5: Solve for x
    x = 13,000,919,906.16/95,859.60
  6. Step 6: Final answer
    x = 135,624.60

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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.