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Finding the Fourth Proportional to 269,473.51, 371,809.51 and 153,177.85

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Solution

The fourth proportional to 269,473.51, 371,809.51 and 153,177.85 is: 211,349.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,473.51 : 371,809.51 = 153,177.85 : x
  2. Step 2: Convert to fraction form
    269,473.51/371,809.51 = 153,177.85/x
  3. Step 3: Cross multiply
    269,473.51x = 371,809.51 × 153,177.85
  4. Step 4: Simplify right side
    269,473.51x = 56,952,981,740.83
  5. Step 5: Solve for x
    x = 56,952,981,740.83/269,473.51
  6. Step 6: Final answer
    x = 211,349.09

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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.