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Finding the Fourth Proportional to 313,211.69, 432,232.41 and 169,971.73

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Solution

The fourth proportional to 313,211.69, 432,232.41 and 169,971.73 is: 234,561.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,211.69 : 432,232.41 = 169,971.73 : x
  2. Step 2: Convert to fraction form
    313,211.69/432,232.41 = 169,971.73/x
  3. Step 3: Cross multiply
    313,211.69x = 432,232.41 × 169,971.73
  4. Step 4: Simplify right side
    313,211.69x = 73,467,290,489.77
  5. Step 5: Solve for x
    x = 73,467,290,489.77/313,211.69
  6. Step 6: Final answer
    x = 234,561.14

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1.5x scale

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.