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Finding the Fourth Proportional to 99,265.60, 148,768.80 and 40,052.80

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Solution

The fourth proportional to 99,265.60, 148,768.80 and 40,052.80 is: 60,026.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,265.60 : 148,768.80 = 40,052.80 : x
  2. Step 2: Convert to fraction form
    99,265.60/148,768.80 = 40,052.80/x
  3. Step 3: Cross multiply
    99,265.60x = 148,768.80 × 40,052.80
  4. Step 4: Simplify right side
    99,265.60x = 5,958,606,992.64
  5. Step 5: Solve for x
    x = 5,958,606,992.64/99,265.60
  6. Step 6: Final answer
    x = 60,026.91

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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.