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Finding the Fourth Proportional to 322,345.72, 483,518.46 and 100,729.72

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Solution

The fourth proportional to 322,345.72, 483,518.46 and 100,729.72 is: 151,094.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,345.72 : 483,518.46 = 100,729.72 : x
  2. Step 2: Convert to fraction form
    322,345.72/483,518.46 = 100,729.72/x
  3. Step 3: Cross multiply
    322,345.72x = 483,518.46 × 100,729.72
  4. Step 4: Simplify right side
    322,345.72x = 48,704,679,090.63
  5. Step 5: Solve for x
    x = 48,704,679,090.63/322,345.72
  6. Step 6: Final answer
    x = 151,094.54

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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.