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Finding the Fourth Proportional to 356,881.58, 492,510.38 and 195,743.42

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Solution

The fourth proportional to 356,881.58, 492,510.38 and 195,743.42 is: 270,133.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,881.58 : 492,510.38 = 195,743.42 : x
  2. Step 2: Convert to fraction form
    356,881.58/492,510.38 = 195,743.42/x
  3. Step 3: Cross multiply
    356,881.58x = 492,510.38 × 195,743.42
  4. Step 4: Simplify right side
    356,881.58x = 96,405,662,725.43
  5. Step 5: Solve for x
    x = 96,405,662,725.43/356,881.58
  6. Step 6: Final answer
    x = 270,133.48

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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.