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Finding the Fourth Proportional to 471,355.08, 707,039.21 and 134,395.86

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Solution

The fourth proportional to 471,355.08, 707,039.21 and 134,395.86 is: 201,595.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,355.08 : 707,039.21 = 134,395.86 : x
  2. Step 2: Convert to fraction form
    471,355.08/707,039.21 = 134,395.86/x
  3. Step 3: Cross multiply
    471,355.08x = 707,039.21 × 134,395.86
  4. Step 4: Simplify right side
    471,355.08x = 95,023,142,009.69
  5. Step 5: Solve for x
    x = 95,023,142,009.69/471,355.08
  6. Step 6: Final answer
    x = 201,595.67

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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.