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Finding the Fourth Proportional to 73,199.88, 101,015.83 and 39,665.88

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Solution

The fourth proportional to 73,199.88, 101,015.83 and 39,665.88 is: 54,738.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,199.88 : 101,015.83 = 39,665.88 : x
  2. Step 2: Convert to fraction form
    73,199.88/101,015.83 = 39,665.88/x
  3. Step 3: Cross multiply
    73,199.88x = 101,015.83 × 39,665.88
  4. Step 4: Simplify right side
    73,199.88x = 4,006,881,790.88
  5. Step 5: Solve for x
    x = 4,006,881,790.88/73,199.88
  6. Step 6: Final answer
    x = 54,738.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.