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Finding the Fourth Proportional to 365,364.15, 548,033.87 and 128,700.65

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Solution

The fourth proportional to 365,364.15, 548,033.87 and 128,700.65 is: 193,046.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,364.15 : 548,033.87 = 128,700.65 : x
  2. Step 2: Convert to fraction form
    365,364.15/548,033.87 = 128,700.65/x
  3. Step 3: Cross multiply
    365,364.15x = 548,033.87 × 128,700.65
  4. Step 4: Simplify right side
    365,364.15x = 70,532,312,872.60
  5. Step 5: Solve for x
    x = 70,532,312,872.60/365,364.15
  6. Step 6: Final answer
    x = 193,046.62

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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.