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Finding the Fourth Proportional to 269,251.72, 371,263.86 and 172,328.68

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Solution

The fourth proportional to 269,251.72, 371,263.86 and 172,328.68 is: 237,619.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,251.72 : 371,263.86 = 172,328.68 : x
  2. Step 2: Convert to fraction form
    269,251.72/371,263.86 = 172,328.68/x
  3. Step 3: Cross multiply
    269,251.72x = 371,263.86 × 172,328.68
  4. Step 4: Simplify right side
    269,251.72x = 63,979,410,925.50
  5. Step 5: Solve for x
    x = 63,979,410,925.50/269,251.72
  6. Step 6: Final answer
    x = 237,619.32

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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.