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Finding the Fourth Proportional to 272,722.34, 409,253.88 and 104,256.92

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Solution

The fourth proportional to 272,722.34, 409,253.88 and 104,256.92 is: 156,450.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,722.34 : 409,253.88 = 104,256.92 : x
  2. Step 2: Convert to fraction form
    272,722.34/409,253.88 = 104,256.92/x
  3. Step 3: Cross multiply
    272,722.34x = 409,253.88 × 104,256.92
  4. Step 4: Simplify right side
    272,722.34x = 42,667,549,026.85
  5. Step 5: Solve for x
    x = 42,667,549,026.85/272,722.34
  6. Step 6: Final answer
    x = 156,450.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.