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Finding the Fourth Proportional to 221,762.34, 305,672.54 and 173,279.52

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Solution

The fourth proportional to 221,762.34, 305,672.54 and 173,279.52 is: 238,844.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,762.34 : 305,672.54 = 173,279.52 : x
  2. Step 2: Convert to fraction form
    221,762.34/305,672.54 = 173,279.52/x
  3. Step 3: Cross multiply
    221,762.34x = 305,672.54 × 173,279.52
  4. Step 4: Simplify right side
    221,762.34x = 52,966,790,141.98
  5. Step 5: Solve for x
    x = 52,966,790,141.98/221,762.34
  6. Step 6: Final answer
    x = 238,844.84

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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.