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Finding the Fourth Proportional to 488,751.12, 733,127.46 and 133,738.62

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Solution

The fourth proportional to 488,751.12, 733,127.46 and 133,738.62 is: 200,608.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,751.12 : 733,127.46 = 133,738.62 : x
  2. Step 2: Convert to fraction form
    488,751.12/733,127.46 = 133,738.62/x
  3. Step 3: Cross multiply
    488,751.12x = 733,127.46 × 133,738.62
  4. Step 4: Simplify right side
    488,751.12x = 98,047,454,784.51
  5. Step 5: Solve for x
    x = 98,047,454,784.51/488,751.12
  6. Step 6: Final answer
    x = 200,608.14

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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.