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Finding the Fourth Proportional to 313,180.76, 432,188.94 and 169,940.84

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Solution

The fourth proportional to 313,180.76, 432,188.94 and 169,940.84 is: 234,518.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,180.76 : 432,188.94 = 169,940.84 : x
  2. Step 2: Convert to fraction form
    313,180.76/432,188.94 = 169,940.84/x
  3. Step 3: Cross multiply
    313,180.76x = 432,188.94 × 169,940.84
  4. Step 4: Simplify right side
    313,180.76x = 73,446,551,502.31
  5. Step 5: Solve for x
    x = 73,446,551,502.31/313,180.76
  6. Step 6: Final answer
    x = 234,518.08

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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.