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Finding the Fourth Proportional to 308,370.44, 425,551.92 and 172,409.24

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Solution

The fourth proportional to 308,370.44, 425,551.92 and 172,409.24 is: 237,925.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,370.44 : 425,551.92 = 172,409.24 : x
  2. Step 2: Convert to fraction form
    308,370.44/425,551.92 = 172,409.24/x
  3. Step 3: Cross multiply
    308,370.44x = 425,551.92 × 172,409.24
  4. Step 4: Simplify right side
    308,370.44x = 73,369,083,107.74
  5. Step 5: Solve for x
    x = 73,369,083,107.74/308,370.44
  6. Step 6: Final answer
    x = 237,925.15

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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.