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Finding the Fourth Proportional to 313,440.04, 470,346.72 and 113,775.94

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Solution

The fourth proportional to 313,440.04, 470,346.72 and 113,775.94 is: 170,731.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,440.04 : 470,346.72 = 113,775.94 : x
  2. Step 2: Convert to fraction form
    313,440.04/470,346.72 = 113,775.94/x
  3. Step 3: Cross multiply
    313,440.04x = 470,346.72 × 113,775.94
  4. Step 4: Simplify right side
    313,440.04x = 53,514,140,193.92
  5. Step 5: Solve for x
    x = 53,514,140,193.92/313,440.04
  6. Step 6: Final answer
    x = 170,731.67

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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.