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Finding the Fourth Proportional to 356,990.40, 492,642.54 and 195,846.68

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Solution

The fourth proportional to 356,990.40, 492,642.54 and 195,846.68 is: 270,266.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,990.40 : 492,642.54 = 195,846.68 : x
  2. Step 2: Convert to fraction form
    356,990.40/492,642.54 = 195,846.68/x
  3. Step 3: Cross multiply
    356,990.40x = 492,642.54 × 195,846.68
  4. Step 4: Simplify right side
    356,990.40x = 96,482,405,885.77
  5. Step 5: Solve for x
    x = 96,482,405,885.77/356,990.40
  6. Step 6: Final answer
    x = 270,266.11

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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.