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Finding the Fourth Proportional to 356,578.34, 492,081.95 and 195,429.92

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Solution

The fourth proportional to 356,578.34, 492,081.95 and 195,429.92 is: 269,695.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,578.34 : 492,081.95 = 195,429.92 : x
  2. Step 2: Convert to fraction form
    356,578.34/492,081.95 = 195,429.92/x
  3. Step 3: Cross multiply
    356,578.34x = 492,081.95 × 195,429.92
  4. Step 4: Simplify right side
    356,578.34x = 96,167,534,150.11
  5. Step 5: Solve for x
    x = 96,167,534,150.11/356,578.34
  6. Step 6: Final answer
    x = 269,695.39

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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.