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Finding the Fourth Proportional to 113,803.50, 170,739.42 and 53,877.66

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Solution

The fourth proportional to 113,803.50, 170,739.42 and 53,877.66 is: 80,832.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,803.50 : 170,739.42 = 53,877.66 : x
  2. Step 2: Convert to fraction form
    113,803.50/170,739.42 = 53,877.66/x
  3. Step 3: Cross multiply
    113,803.50x = 170,739.42 × 53,877.66
  4. Step 4: Simplify right side
    113,803.50x = 9,199,040,419.36
  5. Step 5: Solve for x
    x = 9,199,040,419.36/113,803.50
  6. Step 6: Final answer
    x = 80,832.67

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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.