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Finding the Fourth Proportional to 353,436.56, 487,737.09 and 192,287.93

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Solution

The fourth proportional to 353,436.56, 487,737.09 and 192,287.93 is: 265,354.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,436.56 : 487,737.09 = 192,287.93 : x
  2. Step 2: Convert to fraction form
    353,436.56/487,737.09 = 192,287.93/x
  3. Step 3: Cross multiply
    353,436.56x = 487,737.09 × 192,287.93
  4. Step 4: Simplify right side
    353,436.56x = 93,785,955,420.32
  5. Step 5: Solve for x
    x = 93,785,955,420.32/353,436.56
  6. Step 6: Final answer
    x = 265,354.43

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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.