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Finding the Fourth Proportional to 99,259.60, 148,889.40 and 36,917.20

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Solution

The fourth proportional to 99,259.60, 148,889.40 and 36,917.20 is: 55,375.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,259.60 : 148,889.40 = 36,917.20 : x
  2. Step 2: Convert to fraction form
    99,259.60/148,889.40 = 36,917.20/x
  3. Step 3: Cross multiply
    99,259.60x = 148,889.40 × 36,917.20
  4. Step 4: Simplify right side
    99,259.60x = 5,496,579,757.68
  5. Step 5: Solve for x
    x = 5,496,579,757.68/99,259.60
  6. Step 6: Final answer
    x = 55,375.80

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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.