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Finding the Fourth Proportional to 365,925.60, 548,629.20 and 141,199.20

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Solution

The fourth proportional to 365,925.60, 548,629.20 and 141,199.20 is: 211,698.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,925.60 : 548,629.20 = 141,199.20 : x
  2. Step 2: Convert to fraction form
    365,925.60/548,629.20 = 141,199.20/x
  3. Step 3: Cross multiply
    365,925.60x = 548,629.20 × 141,199.20
  4. Step 4: Simplify right side
    365,925.60x = 77,466,004,136.64
  5. Step 5: Solve for x
    x = 77,466,004,136.64/365,925.60
  6. Step 6: Final answer
    x = 211,698.78

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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.