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Finding the Fourth Proportional to 73,966.80, 110,917.40 and 45,885.72

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Solution

The fourth proportional to 73,966.80, 110,917.40 and 45,885.72 is: 68,808.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,966.80 : 110,917.40 = 45,885.72 : x
  2. Step 2: Convert to fraction form
    73,966.80/110,917.40 = 45,885.72/x
  3. Step 3: Cross multiply
    73,966.80x = 110,917.40 × 45,885.72
  4. Step 4: Simplify right side
    73,966.80x = 5,089,524,946.04
  5. Step 5: Solve for x
    x = 5,089,524,946.04/73,966.80
  6. Step 6: Final answer
    x = 68,808.23

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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.