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Finding the Fourth Proportional to 483,607.96, 725,330.94 and 128,627.08

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Solution

The fourth proportional to 483,607.96, 725,330.94 and 128,627.08 is: 192,919.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,607.96 : 725,330.94 = 128,627.08 : x
  2. Step 2: Convert to fraction form
    483,607.96/725,330.94 = 128,627.08/x
  3. Step 3: Cross multiply
    483,607.96x = 725,330.94 × 128,627.08
  4. Step 4: Simplify right side
    483,607.96x = 93,297,200,845.86
  5. Step 5: Solve for x
    x = 93,297,200,845.86/483,607.96
  6. Step 6: Final answer
    x = 192,919.08

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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.