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Finding the Fourth Proportional to 322,307.20, 483,670.70 and 122,629.32

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Solution

The fourth proportional to 322,307.20, 483,670.70 and 122,629.32 is: 184,023.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,307.20 : 483,670.70 = 122,629.32 : x
  2. Step 2: Convert to fraction form
    322,307.20/483,670.70 = 122,629.32/x
  3. Step 3: Cross multiply
    322,307.20x = 483,670.70 × 122,629.32
  4. Step 4: Simplify right side
    322,307.20x = 59,312,209,044.92
  5. Step 5: Solve for x
    x = 59,312,209,044.92/322,307.20
  6. Step 6: Final answer
    x = 184,023.84

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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.