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Finding the Fourth Proportional to 313,212.71, 432,233.81 and 169,972.74

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Solution

The fourth proportional to 313,212.71, 432,233.81 and 169,972.74 is: 234,562.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,212.71 : 432,233.81 = 169,972.74 : x
  2. Step 2: Convert to fraction form
    313,212.71/432,233.81 = 169,972.74/x
  3. Step 3: Cross multiply
    313,212.71x = 432,233.81 × 169,972.74
  4. Step 4: Simplify right side
    313,212.71x = 73,467,965,006.34
  5. Step 5: Solve for x
    x = 73,467,965,006.34/313,212.71
  6. Step 6: Final answer
    x = 234,562.53

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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.