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Finding the Fourth Proportional to 90,357.96, 135,535.96 and 37,038.05

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Solution

The fourth proportional to 90,357.96, 135,535.96 and 37,038.05 is: 55,556.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,357.96 : 135,535.96 = 37,038.05 : x
  2. Step 2: Convert to fraction form
    90,357.96/135,535.96 = 37,038.05/x
  3. Step 3: Cross multiply
    90,357.96x = 135,535.96 × 37,038.05
  4. Step 4: Simplify right side
    90,357.96x = 5,019,987,401.26
  5. Step 5: Solve for x
    x = 5,019,987,401.26/90,357.96
  6. Step 6: Final answer
    x = 55,556.67

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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.