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Finding the Fourth Proportional to 172,852.80, 259,279.20 and 163,011.30

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Solution

The fourth proportional to 172,852.80, 259,279.20 and 163,011.30 is: 244,516.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,852.80 : 259,279.20 = 163,011.30 : x
  2. Step 2: Convert to fraction form
    172,852.80/259,279.20 = 163,011.30/x
  3. Step 3: Cross multiply
    172,852.80x = 259,279.20 × 163,011.30
  4. Step 4: Simplify right side
    172,852.80x = 42,265,439,454.96
  5. Step 5: Solve for x
    x = 42,265,439,454.96/172,852.80
  6. Step 6: Final answer
    x = 244,516.95

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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.