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Finding the Fourth Proportional to 99,047.79, 148,615.41 and 39,998.79

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Solution

The fourth proportional to 99,047.79, 148,615.41 and 39,998.79 is: 60,015.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,047.79 : 148,615.41 = 39,998.79 : x
  2. Step 2: Convert to fraction form
    99,047.79/148,615.41 = 39,998.79/x
  3. Step 3: Cross multiply
    99,047.79x = 148,615.41 × 39,998.79
  4. Step 4: Simplify right side
    99,047.79x = 5,944,436,575.35
  5. Step 5: Solve for x
    x = 5,944,436,575.35/99,047.79
  6. Step 6: Final answer
    x = 60,015.84

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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.