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Finding the Fourth Proportional to 445,575.90, 668,467.53 and 146,037.90

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Solution

The fourth proportional to 445,575.90, 668,467.53 and 146,037.90 is: 219,090.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,575.90 : 668,467.53 = 146,037.90 : x
  2. Step 2: Convert to fraction form
    445,575.90/668,467.53 = 146,037.90/x
  3. Step 3: Cross multiply
    445,575.90x = 668,467.53 × 146,037.90
  4. Step 4: Simplify right side
    445,575.90x = 97,621,594,299.39
  5. Step 5: Solve for x
    x = 97,621,594,299.39/445,575.90
  6. Step 6: Final answer
    x = 219,090.83

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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.