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Finding the Fourth Proportional to 353,645.34, 488,036.79 and 192,505.02

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Solution

The fourth proportional to 353,645.34, 488,036.79 and 192,505.02 is: 265,660.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,645.34 : 488,036.79 = 192,505.02 : x
  2. Step 2: Convert to fraction form
    353,645.34/488,036.79 = 192,505.02/x
  3. Step 3: Cross multiply
    353,645.34x = 488,036.79 × 192,505.02
  4. Step 4: Simplify right side
    353,645.34x = 93,949,532,019.69
  5. Step 5: Solve for x
    x = 93,949,532,019.69/353,645.34
  6. Step 6: Final answer
    x = 265,660.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.